diff --git a/Cargo.lock b/Cargo.lock
index b11af51..5646e0e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -7835,9 +7835,9 @@ checksum = "930c0acf610d3fdb5e2ab6213019aaa04e227ebe9547b0649ba599b16d788bd7"
 
 [[package]]
 name = "serde"
-version = "1.0.124"
+version = "1.0.126"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd761ff957cb2a45fbb9ab3da6512de9de55872866160b23c25f1a841e99d29f"
+checksum = "ec7505abeacaec74ae4778d9d9328fe5a5d04253220a85c4ee022239fc996d03"
 dependencies = [
  "serde_derive",
 ]
@@ -7854,9 +7854,9 @@ dependencies = [
 
 [[package]]
 name = "serde_derive"
-version = "1.0.124"
+version = "1.0.126"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1800f7693e94e186f5e25a28291ae1570da908aff7d97a095dec1e56ff99069b"
+checksum = "963a7dbc9895aeac7ac90e74f34a5d5261828f79df35cbed41e10189d3804d43"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/bin/node/bench/Cargo.toml b/bin/node/bench/Cargo.toml
index 728eb8d..c2fe0d0 100644
--- a/bin/node/bench/Cargo.toml
+++ b/bin/node/bench/Cargo.toml
@@ -17,7 +17,7 @@ sc-cli = { version = "0.9.0", path = "../../../client/cli" }
 sc-client-api = { version = "3.0.0", path = "../../../client/api/" }
 sp-runtime = { version = "3.0.0", path = "../../../primitives/runtime" }
 sp-state-machine = { version = "0.9.0", path = "../../../primitives/state-machine" }
-serde = "1.0.101"
+serde = "1.0.126"
 serde_json = "1.0.41"
 structopt = "0.3"
 derive_more = "0.99.2"
diff --git a/bin/node/browser-testing/Cargo.toml b/bin/node/browser-testing/Cargo.toml
index 66e7b39..fc2c7ef 100644
--- a/bin/node/browser-testing/Cargo.toml
+++ b/bin/node/browser-testing/Cargo.toml
@@ -10,7 +10,7 @@ license = "Apache-2.0"
 futures-timer = "3.0.2"
 libp2p = { version = "0.34.0", default-features = false }
 jsonrpc-core = "15.0.0"
-serde = "1.0.106"
+serde = "1.0.126"
 serde_json = "1.0.48"
 wasm-bindgen = { version = "=0.2.69", features = ["serde-serialize"] }
 wasm-bindgen-futures = "0.4.18"
diff --git a/bin/node/cli/Cargo.toml b/bin/node/cli/Cargo.toml
index 75e0a72..6534e16 100644
--- a/bin/node/cli/Cargo.toml
+++ b/bin/node/cli/Cargo.toml
@@ -35,7 +35,7 @@ crate-type = ["cdylib", "rlib"]
 [dependencies]
 # third-party dependencies
 codec = { package = "parity-scale-codec", version = "2.0.0" }
-serde = { version = "1.0.102", features = ["derive"] }
+serde = { version = "1.0.126", features = ["derive"] }
 futures = { version = "0.3.9", features = ["compat"] }
 hex-literal = "0.3.1"
 log = "0.4.8"
diff --git a/bin/node/runtime/Cargo.toml b/bin/node/runtime/Cargo.toml
index f77a16a..f1b454b 100644
--- a/bin/node/runtime/Cargo.toml
+++ b/bin/node/runtime/Cargo.toml
@@ -15,7 +15,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 # third-party dependencies
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
-serde = { version = "1.0.102", optional = true }
+serde = { version = "1.0.126", optional = true }
 static_assertions = "1.1.0"
 hex-literal = { version = "0.3.1", optional = true }
 
diff --git a/client/chain-spec/Cargo.toml b/client/chain-spec/Cargo.toml
index 27850cc..cccb141 100644
--- a/client/chain-spec/Cargo.toml
+++ b/client/chain-spec/Cargo.toml
@@ -17,7 +17,7 @@ sc-chain-spec-derive = { version = "3.0.0", path = "./derive" }
 impl-trait-for-tuples = "0.2.1"
 sc-network = { version = "0.9.0", path = "../network" }
 sp-core = { version = "3.0.0", path = "../../primitives/core" }
-serde = { version = "1.0.101", features = ["derive"] }
+serde = { version = "1.0.126", features = ["derive"] }
 serde_json = "1.0.41"
 sp-runtime = { version = "3.0.0", path = "../../primitives/runtime" }
 sp-chain-spec = { version = "3.0.0", path = "../../primitives/chain-spec" }
diff --git a/client/cli/Cargo.toml b/client/cli/Cargo.toml
index 03d23c5..0c6bd98 100644
--- a/client/cli/Cargo.toml
+++ b/client/cli/Cargo.toml
@@ -41,7 +41,7 @@ names = "0.11.0"
 structopt = "0.3.8"
 sc-tracing = { version = "3.0.0", path = "../tracing" }
 chrono = "0.4.10"
-serde = "1.0.111"
+serde = "1.0.126"
 thiserror = "1.0.21"
 
 [target.'cfg(not(target_os = "unknown"))'.dependencies]
diff --git a/client/consensus/babe/Cargo.toml b/client/consensus/babe/Cargo.toml
index 14d48fb..e48c766 100644
--- a/client/consensus/babe/Cargo.toml
+++ b/client/consensus/babe/Cargo.toml
@@ -22,7 +22,7 @@ sp-keystore = { version = "0.9.0", path = "../../../primitives/keystore" }
 num-bigint = "0.2.3"
 num-rational = "0.2.2"
 num-traits = "0.2.8"
-serde = { version = "1.0.104", features = ["derive"] }
+serde = { version = "1.0.126", features = ["derive"] }
 sp-version = { version = "3.0.0", path = "../../../primitives/version" }
 sp-io = { version = "3.0.0", path = "../../../primitives/io" }
 sp-inherents = { version = "3.0.0", path = "../../../primitives/inherents" }
diff --git a/client/consensus/babe/rpc/Cargo.toml b/client/consensus/babe/rpc/Cargo.toml
index 71a1205..8dc6f46 100644
--- a/client/consensus/babe/rpc/Cargo.toml
+++ b/client/consensus/babe/rpc/Cargo.toml
@@ -19,7 +19,7 @@ jsonrpc-core = "15.1.0"
 jsonrpc-core-client = "15.1.0"
 jsonrpc-derive = "15.1.0"
 sp-consensus-babe = { version = "0.9.0", path = "../../../../primitives/consensus/babe" }
-serde = { version = "1.0.104", features=["derive"] }
+serde = { version = "1.0.126", features=["derive"] }
 sp-blockchain = { version = "3.0.0", path = "../../../../primitives/blockchain" }
 sp-runtime = { version = "3.0.0", path = "../../../../primitives/runtime" }
 sc-consensus-epochs = { version = "0.9.0", path = "../../epochs" }
diff --git a/client/network/Cargo.toml b/client/network/Cargo.toml
index 87e960f..1be57a7 100644
--- a/client/network/Cargo.toml
+++ b/client/network/Cargo.toml
@@ -47,7 +47,7 @@ rand = "0.7.2"
 sc-block-builder = { version = "0.9.0", path = "../block-builder" }
 sc-client-api = { version = "3.0.0", path = "../api" }
 sc-peerset = { version = "3.0.0", path = "../peerset" }
-serde = { version = "1.0.101", features = ["derive"] }
+serde = { version = "1.0.126", features = ["derive"] }
 serde_json = "1.0.41"
 smallvec = "1.5.0"
 sp-arithmetic = { version = "3.0.0", path = "../../primitives/arithmetic" }
diff --git a/client/rpc-api/Cargo.toml b/client/rpc-api/Cargo.toml
index d213dec..d602a0c 100644
--- a/client/rpc-api/Cargo.toml
+++ b/client/rpc-api/Cargo.toml
@@ -26,7 +26,7 @@ sp-core = { version = "3.0.0", path = "../../primitives/core" }
 sp-version = { version = "3.0.0", path = "../../primitives/version" }
 sp-runtime = { path = "../../primitives/runtime" , version = "3.0.0"}
 sp-chain-spec = { path = "../../primitives/chain-spec" , version = "3.0.0"}
-serde = { version = "1.0.101", features = ["derive"] }
+serde = { version = "1.0.126", features = ["derive"] }
 serde_json = "1.0.41"
 sp-transaction-pool = { version = "3.0.0", path = "../../primitives/transaction-pool" }
 sp-rpc = { version = "3.0.0", path = "../../primitives/rpc" }
diff --git a/client/rpc-servers/Cargo.toml b/client/rpc-servers/Cargo.toml
index 95c3e41..83d5819 100644
--- a/client/rpc-servers/Cargo.toml
+++ b/client/rpc-servers/Cargo.toml
@@ -18,7 +18,7 @@ jsonrpc-core = "15.1.0"
 pubsub = { package = "jsonrpc-pubsub", version = "15.1.0" }
 log = "0.4.8"
 prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../utils/prometheus", version = "0.9.0"}
-serde = "1.0.101"
+serde = "1.0.126"
 serde_json = "1.0.41"
 sp-runtime = { version = "3.0.0", path = "../../primitives/runtime" }
 
diff --git a/client/service/Cargo.toml b/client/service/Cargo.toml
index 0a9be76..7932b19 100644
--- a/client/service/Cargo.toml
+++ b/client/service/Cargo.toml
@@ -38,7 +38,7 @@ wasm-timer = "0.2"
 exit-future = "0.2.0"
 pin-project = "1.0.4"
 hash-db = "0.15.2"
-serde = "1.0.101"
+serde = "1.0.126"
 serde_json = "1.0.41"
 sc-keystore = { version = "3.0.0", path = "../keystore" }
 sp-io = { version = "3.0.0", path = "../../primitives/io" }
diff --git a/client/telemetry/Cargo.toml b/client/telemetry/Cargo.toml
index 23b6936..9f1741b 100644
--- a/client/telemetry/Cargo.toml
+++ b/client/telemetry/Cargo.toml
@@ -22,7 +22,7 @@ libp2p = { version = "0.34.0", default-features = false, features = ["dns", "tcp
 log = "0.4.8"
 pin-project = "1.0.4"
 rand = "0.7.2"
-serde = { version = "1.0.101", features = ["derive"] }
+serde = { version = "1.0.126", features = ["derive"] }
 take_mut = "0.2.2"
 void = "1.0.2"
 tracing = "0.1.10"
diff --git a/client/tracing/Cargo.toml b/client/tracing/Cargo.toml
index 34aa9d9..4d18355 100644
--- a/client/tracing/Cargo.toml
+++ b/client/tracing/Cargo.toml
@@ -22,7 +22,7 @@ once_cell = "1.4.1"
 parking_lot = "0.11.1"
 regex = "1.4.2"
 rustc-hash = "1.1.0"
-serde = "1.0.101"
+serde = "1.0.126"
 serde_json = "1.0.41"
 thiserror = "1.0.21"
 tracing = "0.1.22"
diff --git a/client/transaction-pool/graph/Cargo.toml b/client/transaction-pool/graph/Cargo.toml
index 7ed455f..207b61b 100644
--- a/client/transaction-pool/graph/Cargo.toml
+++ b/client/transaction-pool/graph/Cargo.toml
@@ -18,7 +18,7 @@ thiserror = "1.0.21"
 futures = "0.3.9"
 log = "0.4.8"
 parking_lot = "0.11.1"
-serde = { version = "1.0.101", features = ["derive"] }
+serde = { version = "1.0.126", features = ["derive"] }
 wasm-timer = "0.2"
 sp-blockchain = { version = "3.0.0", path = "../../../primitives/blockchain" }
 sp-utils = { version = "3.0.0", path = "../../../primitives/utils" }
diff --git a/frame/assets/Cargo.toml b/frame/assets/Cargo.toml
index 67fa0af..52d8a6b 100644
--- a/frame/assets/Cargo.toml
+++ b/frame/assets/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
 # Needed for various traits. In our case, `OnFinalize`.
diff --git a/frame/atomic-swap/Cargo.toml b/frame/atomic-swap/Cargo.toml
index 99ce41f..d7bf322 100644
--- a/frame/atomic-swap/Cargo.toml
+++ b/frame/atomic-swap/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false }
 frame-support = { version = "3.0.0", default-features = false, path = "../support" }
 frame-system = { version = "3.0.0", default-features = false, path = "../system" }
diff --git a/frame/aura/Cargo.toml b/frame/aura/Cargo.toml
index 80ea164..4377131 100644
--- a/frame/aura/Cargo.toml
+++ b/frame/aura/Cargo.toml
@@ -16,7 +16,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 sp-application-crypto = { version = "3.0.0", default-features = false, path = "../../primitives/application-crypto" }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 pallet-session = { version = "3.0.0", default-features = false, path = "../session" }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../../primitives/runtime" }
 frame-support = { version = "3.0.0", default-features = false, path = "../support" }
diff --git a/frame/authority-discovery/Cargo.toml b/frame/authority-discovery/Cargo.toml
index 43a09b0..a5252be 100644
--- a/frame/authority-discovery/Cargo.toml
+++ b/frame/authority-discovery/Cargo.toml
@@ -17,7 +17,7 @@ sp-authority-discovery = { version = "3.0.0", default-features = false, path = "
 sp-application-crypto = { version = "3.0.0", default-features = false, path = "../../primitives/application-crypto" }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 pallet-session = { version = "3.0.0", features = ["historical" ], path = "../session", default-features = false }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../../primitives/runtime" }
 frame-support = { version = "3.0.0", default-features = false, path = "../support" }
diff --git a/frame/authorship/Cargo.toml b/frame/authorship/Cargo.toml
index ab48fbe..bc211d7 100644
--- a/frame/authorship/Cargo.toml
+++ b/frame/authorship/Cargo.toml
@@ -25,7 +25,7 @@ impl-trait-for-tuples = "0.2.1"
 [dev-dependencies]
 sp-core = { version = "3.0.0", path = "../../primitives/core" }
 sp-io ={ version = "3.0.0", path = "../../primitives/io" }
-serde = { version = "1.0.101" }
+serde = { version = "1.0.126" }
 
 [features]
 default = ["std"]
diff --git a/frame/babe/Cargo.toml b/frame/babe/Cargo.toml
index 9bde935..0755423 100644
--- a/frame/babe/Cargo.toml
+++ b/frame/babe/Cargo.toml
@@ -20,7 +20,7 @@ frame-system = { version = "3.0.0", default-features = false, path = "../system"
 pallet-authorship = { version = "3.0.0", default-features = false, path = "../authorship" }
 pallet-session = { version = "3.0.0", default-features = false, path = "../session" }
 pallet-timestamp = { version = "3.0.0", default-features = false, path = "../timestamp" }
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 sp-application-crypto = { version = "3.0.0", default-features = false, path = "../../primitives/application-crypto" }
 sp-consensus-babe = { version = "0.9.0", default-features = false, path = "../../primitives/consensus/babe" }
 sp-consensus-vrf = { version = "0.9.0", default-features = false, path = "../../primitives/consensus/vrf" }
diff --git a/frame/balances/Cargo.toml b/frame/balances/Cargo.toml
index 39b7fda..77c53d2 100644
--- a/frame/balances/Cargo.toml
+++ b/frame/balances/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../../primitives/runtime" }
diff --git a/frame/benchmarking/Cargo.toml b/frame/benchmarking/Cargo.toml
index 41ab9ef..5dba0ad 100644
--- a/frame/benchmarking/Cargo.toml
+++ b/frame/benchmarking/Cargo.toml
@@ -27,7 +27,7 @@ frame-system = { version = "3.0.0", default-features = false, path = "../system"
 
 [dev-dependencies]
 hex-literal = "0.3.1"
-serde = "1.0.101"
+serde = "1.0.126"
 
 [features]
 default = [ "std" ]
diff --git a/frame/bounties/Cargo.toml b/frame/bounties/Cargo.toml
index ec4f1b9..90f0c92 100644
--- a/frame/bounties/Cargo.toml
+++ b/frame/bounties/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../../primitives/runtime" }
diff --git a/frame/collective/Cargo.toml b/frame/collective/Cargo.toml
index 0c58f41..979b53d 100644
--- a/frame/collective/Cargo.toml
+++ b/frame/collective/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-core = { version = "3.0.0", default-features = false, path = "../../primitives/core" }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
diff --git a/frame/contracts/Cargo.toml b/frame/contracts/Cargo.toml
index c5ba615..ca39234 100644
--- a/frame/contracts/Cargo.toml
+++ b/frame/contracts/Cargo.toml
@@ -24,7 +24,7 @@ pallet-contracts-primitives = { version = "2.0.0", default-features = false, pat
 pallet-contracts-proc-macro = { version = "0.1.0", path = "proc-macro" }
 parity-wasm = { version = "0.41.0", default-features = false }
 pwasm-utils = { version = "0.16", default-features = false }
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 sp-core = { version = "3.0.0", default-features = false, path = "../../primitives/core" }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../../primitives/runtime" }
 sp-io = { version = "3.0.0", default-features = false, path = "../../primitives/io" }
diff --git a/frame/contracts/rpc/Cargo.toml b/frame/contracts/rpc/Cargo.toml
index 06c3c7d..bbbbdb5 100644
--- a/frame/contracts/rpc/Cargo.toml
+++ b/frame/contracts/rpc/Cargo.toml
@@ -21,7 +21,7 @@ jsonrpc-derive = "15.1.0"
 sp-blockchain = { version = "3.0.0", path = "../../../primitives/blockchain" }
 sp-core = { version = "3.0.0", path = "../../../primitives/core" }
 sp-rpc = { version = "3.0.0", path = "../../../primitives/rpc" }
-serde = { version = "1.0.101", features = ["derive"] }
+serde = { version = "1.0.126", features = ["derive"] }
 sp-runtime = { version = "3.0.0", path = "../../../primitives/runtime" }
 sp-api = { version = "3.0.0", path = "../../../primitives/api" }
 pallet-contracts-primitives = { version = "2.0.0", path = "../common" }
diff --git a/frame/democracy/Cargo.toml b/frame/democracy/Cargo.toml
index 2e675dd..2773df5 100644
--- a/frame/democracy/Cargo.toml
+++ b/frame/democracy/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
 sp-io = { version = "3.0.0", default-features = false, path = "../../primitives/io" }
diff --git a/frame/elections/Cargo.toml b/frame/elections/Cargo.toml
index a13c6d7..bd8b03b 100644
--- a/frame/elections/Cargo.toml
+++ b/frame/elections/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-core = { version = "3.0.0", default-features = false, path = "../../primitives/core" }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
diff --git a/frame/example-offchain-worker/Cargo.toml b/frame/example-offchain-worker/Cargo.toml
index 5a2db25..942df4c 100644
--- a/frame/example-offchain-worker/Cargo.toml
+++ b/frame/example-offchain-worker/Cargo.toml
@@ -16,7 +16,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false }
 frame-support = { version = "3.0.0", default-features = false, path = "../support" }
 frame-system = { version = "3.0.0", default-features = false, path = "../system" }
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 sp-core = { version = "3.0.0", default-features = false, path = "../../primitives/core" }
 sp-keystore = { version = "0.9.0", path = "../../primitives/keystore", optional = true }
 sp-io = { version = "3.0.0", default-features = false, path = "../../primitives/io" }
diff --git a/frame/example-parallel/Cargo.toml b/frame/example-parallel/Cargo.toml
index b2f2888..d42c731 100644
--- a/frame/example-parallel/Cargo.toml
+++ b/frame/example-parallel/Cargo.toml
@@ -22,7 +22,7 @@ sp-std = { version = "3.0.0", default-features = false, path = "../../primitives
 sp-tasks = { version = "3.0.0", default-features = false, path = "../../primitives/tasks" }
 
 [dev-dependencies]
-serde = { version = "1.0.101" }
+serde = { version = "1.0.126" }
 
 [features]
 default = ["std"]
diff --git a/frame/example/Cargo.toml b/frame/example/Cargo.toml
index c6dfc01..9988e8c 100644
--- a/frame/example/Cargo.toml
+++ b/frame/example/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false }
 frame-support = { version = "3.0.0", default-features = false, path = "../support" }
 frame-system = { version = "3.0.0", default-features = false, path = "../system" }
diff --git a/frame/executive/Cargo.toml b/frame/executive/Cargo.toml
index 31f1f34..0a24de2 100644
--- a/frame/executive/Cargo.toml
+++ b/frame/executive/Cargo.toml
@@ -16,7 +16,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 frame-support = { version = "3.0.0", default-features = false, path = "../support" }
 frame-system = { version = "3.0.0", default-features = false, path = "../system" }
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../../primitives/runtime" }
 sp-tracing = { version = "3.0.0", default-features = false, path = "../../primitives/tracing" }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
diff --git a/frame/grandpa/Cargo.toml b/frame/grandpa/Cargo.toml
index a9ba0cc..9c0acfb 100644
--- a/frame/grandpa/Cargo.toml
+++ b/frame/grandpa/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-application-crypto = { version = "3.0.0", default-features = false, path = "../../primitives/application-crypto" }
 sp-core = { version = "3.0.0", default-features = false, path = "../../primitives/core" }
diff --git a/frame/identity/Cargo.toml b/frame/identity/Cargo.toml
index 3fd0c30..7d00c83 100644
--- a/frame/identity/Cargo.toml
+++ b/frame/identity/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 enumflags2 = { version = "0.6.2" }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
diff --git a/frame/im-online/Cargo.toml b/frame/im-online/Cargo.toml
index bde041c..ac5f7a1 100644
--- a/frame/im-online/Cargo.toml
+++ b/frame/im-online/Cargo.toml
@@ -18,7 +18,7 @@ pallet-authorship = { version = "3.0.0", default-features = false, path = "../au
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-core = { version = "3.0.0", default-features = false, path = "../../primitives/core" }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 sp-io = { version = "3.0.0", default-features = false, path = "../../primitives/io" }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../../primitives/runtime" }
 sp-staking = { version = "3.0.0", default-features = false, path = "../../primitives/staking" }
diff --git a/frame/indices/Cargo.toml b/frame/indices/Cargo.toml
index cde3cde..b4bacf7 100644
--- a/frame/indices/Cargo.toml
+++ b/frame/indices/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-keyring = { version = "3.0.0", optional = true, path = "../../primitives/keyring" }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
diff --git a/frame/lottery/Cargo.toml b/frame/lottery/Cargo.toml
index 05bb7e3..4a16702 100644
--- a/frame/lottery/Cargo.toml
+++ b/frame/lottery/Cargo.toml
@@ -25,7 +25,7 @@ frame-benchmarking = { version = "3.0.0", default-features = false, path = "../b
 pallet-balances = { version = "3.0.0", path = "../balances" }
 sp-core = { version = "3.0.0", path = "../../primitives/core" }
 sp-io = { version = "3.0.0", path = "../../primitives/io" }
-serde = { version = "1.0.101" }
+serde = { version = "1.0.126" }
 
 [features]
 default = ["std"]
diff --git a/frame/membership/Cargo.toml b/frame/membership/Cargo.toml
index 98987e6..e2e10f3 100644
--- a/frame/membership/Cargo.toml
+++ b/frame/membership/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
 sp-io = { version = "3.0.0", default-features = false, path = "../../primitives/io" }
diff --git a/frame/merkle-mountain-range/Cargo.toml b/frame/merkle-mountain-range/Cargo.toml
index eea3845..cee00a0 100644
--- a/frame/merkle-mountain-range/Cargo.toml
+++ b/frame/merkle-mountain-range/Cargo.toml
@@ -18,7 +18,7 @@ frame-support = { version = "3.0.0", default-features = false, path = "../suppor
 frame-system = { version = "3.0.0", default-features = false, path = "../system" }
 mmr-lib = { package = "ckb-merkle-mountain-range", default-features = false, version = "0.3.1" }
 pallet-mmr-primitives = { version = "3.0.0", default-features = false, path = "./primitives" }
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 sp-core = { version = "3.0.0", default-features = false, path = "../../primitives/core" }
 sp-io = { version = "3.0.0", default-features = false, path = "../../primitives/io" }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../../primitives/runtime" }
diff --git a/frame/merkle-mountain-range/primitives/Cargo.toml b/frame/merkle-mountain-range/primitives/Cargo.toml
index be0a8bd..d5a84a4 100644
--- a/frame/merkle-mountain-range/primitives/Cargo.toml
+++ b/frame/merkle-mountain-range/primitives/Cargo.toml
@@ -15,7 +15,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false }
 frame-support = { version = "3.0.0", default-features = false, path = "../../support" }
 frame-system = { version = "3.0.0", default-features = false, path = "../../system" }
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 sp-api = { version = "3.0.0", default-features = false, path = "../../../primitives/api" }
 sp-core = { version = "3.0.0", default-features = false, path = "../../../primitives/core" }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../../../primitives/runtime" }
diff --git a/frame/metadata/Cargo.toml b/frame/metadata/Cargo.toml
index cede8a8..6d939e7 100644
--- a/frame/metadata/Cargo.toml
+++ b/frame/metadata/Cargo.toml
@@ -14,7 +14,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
 sp-core = { version = "3.0.0", default-features = false, path = "../../primitives/core" }
 
diff --git a/frame/multisig/Cargo.toml b/frame/multisig/Cargo.toml
index e8d6251..7660ee5 100644
--- a/frame/multisig/Cargo.toml
+++ b/frame/multisig/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false }
 frame-support = { version = "3.0.0", default-features = false, path = "../support" }
 frame-system = { version = "3.0.0", default-features = false, path = "../system" }
diff --git a/frame/nicks/Cargo.toml b/frame/nicks/Cargo.toml
index 611f492..e59f713 100644
--- a/frame/nicks/Cargo.toml
+++ b/frame/nicks/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
 sp-io = { version = "3.0.0", default-features = false, path = "../../primitives/io" }
diff --git a/frame/node-authorization/Cargo.toml b/frame/node-authorization/Cargo.toml
index db77f25..b1d82e8 100644
--- a/frame/node-authorization/Cargo.toml
+++ b/frame/node-authorization/Cargo.toml
@@ -12,7 +12,7 @@ description = "FRAME pallet for node authorization"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 frame-support = { version = "3.0.0", default-features = false, path = "../support" }
 frame-system = { version = "3.0.0", default-features = false, path = "../system" }
diff --git a/frame/offences/Cargo.toml b/frame/offences/Cargo.toml
index 3232d5f..5c79efd 100644
--- a/frame/offences/Cargo.toml
+++ b/frame/offences/Cargo.toml
@@ -16,7 +16,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 pallet-balances = { version = "3.0.0", default-features = false, path = "../balances" }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../../primitives/runtime" }
 sp-staking = { version = "3.0.0", default-features = false, path = "../../primitives/staking" }
 frame-support = { version = "3.0.0", default-features = false, path = "../support" }
diff --git a/frame/proxy/Cargo.toml b/frame/proxy/Cargo.toml
index 9490364..61f9fbd 100644
--- a/frame/proxy/Cargo.toml
+++ b/frame/proxy/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false }
 frame-support = { version = "3.0.0", default-features = false, path = "../support" }
 frame-system = { version = "3.0.0", default-features = false, path = "../system" }
diff --git a/frame/randomness-collective-flip/Cargo.toml b/frame/randomness-collective-flip/Cargo.toml
index 285326e..90ce610 100644
--- a/frame/randomness-collective-flip/Cargo.toml
+++ b/frame/randomness-collective-flip/Cargo.toml
@@ -23,7 +23,7 @@ sp-std = { version = "3.0.0", default-features = false, path = "../../primitives
 [dev-dependencies]
 sp-core = { version = "3.0.0", path = "../../primitives/core" }
 sp-io = { version = "3.0.0", path = "../../primitives/io" }
-serde = { version = "1.0.101" }
+serde = { version = "1.0.126" }
 
 [features]
 default = ["std"]
diff --git a/frame/recovery/Cargo.toml b/frame/recovery/Cargo.toml
index 80450db..cb7df28 100644
--- a/frame/recovery/Cargo.toml
+++ b/frame/recovery/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 enumflags2 = { version = "0.6.2" }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
diff --git a/frame/scheduler/Cargo.toml b/frame/scheduler/Cargo.toml
index eef287d..bc6d679 100644
--- a/frame/scheduler/Cargo.toml
+++ b/frame/scheduler/Cargo.toml
@@ -10,7 +10,7 @@ description = "FRAME example pallet"
 readme = "README.md"
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false }
 frame-support = { version = "3.0.0", default-features = false, path = "../support" }
 frame-system = { version = "3.0.0", default-features = false, path = "../system" }
diff --git a/frame/scored-pool/Cargo.toml b/frame/scored-pool/Cargo.toml
index e5e71db..7c8d337 100644
--- a/frame/scored-pool/Cargo.toml
+++ b/frame/scored-pool/Cargo.toml
@@ -14,7 +14,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 sp-io = { version = "3.0.0", default-features = false, path = "../../primitives/io" }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../../primitives/runtime" }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
diff --git a/frame/session/Cargo.toml b/frame/session/Cargo.toml
index 5b8fe6e..979837a 100644
--- a/frame/session/Cargo.toml
+++ b/frame/session/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-core = { version = "3.0.0", default-features = false, path = "../../primitives/core" }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
diff --git a/frame/session/benchmarking/Cargo.toml b/frame/session/benchmarking/Cargo.toml
index bf5a9a9..51fe4ad 100644
--- a/frame/session/benchmarking/Cargo.toml
+++ b/frame/session/benchmarking/Cargo.toml
@@ -24,7 +24,7 @@ pallet-session = { version = "3.0.0", default-features = false, path = "../../se
 rand = { version = "0.7.2", default-features = false }
 
 [dev-dependencies]
-serde = { version = "1.0.101" }
+serde = { version = "1.0.126" }
 codec = { package = "parity-scale-codec", version = "2.0.0", features = ["derive"] }
 sp-core = { version = "3.0.0", path = "../../../primitives/core" }
 pallet-staking-reward-curve = { version = "3.0.0", path = "../../staking/reward-curve" }
diff --git a/frame/society/Cargo.toml b/frame/society/Cargo.toml
index 5ddebeb..0846329 100644
--- a/frame/society/Cargo.toml
+++ b/frame/society/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../../primitives/runtime" }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
diff --git a/frame/staking/Cargo.toml b/frame/staking/Cargo.toml
index c5f7dba..67c02b5 100644
--- a/frame/staking/Cargo.toml
+++ b/frame/staking/Cargo.toml
@@ -14,7 +14,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 static_assertions = "1.1.0"
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
 sp-npos-elections = { version = "3.0.0", default-features = false, path = "../../primitives/npos-elections" }
diff --git a/frame/staking/fuzzer/Cargo.toml b/frame/staking/fuzzer/Cargo.toml
index a88e961..9daaf39 100644
--- a/frame/staking/fuzzer/Cargo.toml
+++ b/frame/staking/fuzzer/Cargo.toml
@@ -28,7 +28,7 @@ sp-io ={ version = "3.0.0", path = "../../../primitives/io" }
 sp-core = { version = "3.0.0", path = "../../../primitives/core" }
 sp-npos-elections = { version = "3.0.0", path = "../../../primitives/npos-elections" }
 sp-runtime = { version = "3.0.0", path = "../../../primitives/runtime" }
-serde = "1.0.101"
+serde = "1.0.126"
 
 [features]
 # Note feature std is required so that impl_opaque_keys derive serde.
diff --git a/frame/sudo/Cargo.toml b/frame/sudo/Cargo.toml
index ed19d2e..1b8ae9c 100644
--- a/frame/sudo/Cargo.toml
+++ b/frame/sudo/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
 sp-io = { version = "3.0.0", default-features = false, path = "../../primitives/io" }
diff --git a/frame/support/Cargo.toml b/frame/support/Cargo.toml
index 8edf1ff..fba5c08 100644
--- a/frame/support/Cargo.toml
+++ b/frame/support/Cargo.toml
@@ -14,7 +14,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 log = "0.4"
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 frame-metadata = { version = "13.0.0", default-features = false, path = "../metadata" }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
diff --git a/frame/support/test/Cargo.toml b/frame/support/test/Cargo.toml
index 67cf668..6a226b9 100644
--- a/frame/support/test/Cargo.toml
+++ b/frame/support/test/Cargo.toml
@@ -12,7 +12,7 @@ repository = "https://github.com/paritytech/substrate/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", default-features = false, features = ["derive"] }
+serde = { version = "1.0.126", default-features = false, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-io = { version = "3.0.0", path = "../../../primitives/io", default-features = false }
 sp-state-machine = { version = "0.9.0", optional = true, path = "../../../primitives/state-machine" }
diff --git a/frame/system/Cargo.toml b/frame/system/Cargo.toml
index c4530e9..40f9367 100644
--- a/frame/system/Cargo.toml
+++ b/frame/system/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-core = { version = "3.0.0", default-features = false, path = "../../primitives/core" }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
diff --git a/frame/system/benchmarking/Cargo.toml b/frame/system/benchmarking/Cargo.toml
index ddf52c9..d8880f6 100644
--- a/frame/system/benchmarking/Cargo.toml
+++ b/frame/system/benchmarking/Cargo.toml
@@ -22,7 +22,7 @@ frame-support = { version = "3.0.0", default-features = false, path = "../../sup
 sp-core = { version = "3.0.0", default-features = false, path = "../../../primitives/core" }
 
 [dev-dependencies]
-serde = { version = "1.0.101" }
+serde = { version = "1.0.126" }
 sp-io ={ version = "3.0.0", path = "../../../primitives/io" }
 
 [features]
diff --git a/frame/timestamp/Cargo.toml b/frame/timestamp/Cargo.toml
index f4f7bbd..29edf4d 100644
--- a/frame/timestamp/Cargo.toml
+++ b/frame/timestamp/Cargo.toml
@@ -15,7 +15,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
 sp-io = { version = "3.0.0", default-features = false, path = "../../primitives/io", optional = true }
diff --git a/frame/tips/Cargo.toml b/frame/tips/Cargo.toml
index 92af65c..37d8164 100644
--- a/frame/tips/Cargo.toml
+++ b/frame/tips/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../../primitives/runtime" }
diff --git a/frame/transaction-payment/Cargo.toml b/frame/transaction-payment/Cargo.toml
index 7a713ab..02ffc1d 100644
--- a/frame/transaction-payment/Cargo.toml
+++ b/frame/transaction-payment/Cargo.toml
@@ -14,7 +14,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../../primitives/runtime" }
 frame-support = { version = "3.0.0", default-features = false, path = "../support" }
diff --git a/frame/treasury/Cargo.toml b/frame/treasury/Cargo.toml
index 461dc91..d911573 100644
--- a/frame/treasury/Cargo.toml
+++ b/frame/treasury/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../../primitives/runtime" }
diff --git a/frame/utility/Cargo.toml b/frame/utility/Cargo.toml
index edb9302..06770f5 100644
--- a/frame/utility/Cargo.toml
+++ b/frame/utility/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false }
 frame-support = { version = "3.0.0", default-features = false, path = "../support" }
 frame-system = { version = "3.0.0", default-features = false, path = "../system" }
diff --git a/frame/vesting/Cargo.toml b/frame/vesting/Cargo.toml
index dc42fbc..813d4a4 100644
--- a/frame/vesting/Cargo.toml
+++ b/frame/vesting/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", optional = true }
+serde = { version = "1.0.126", optional = true }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 enumflags2 = { version = "0.6.2" }
 sp-std = { version = "3.0.0", default-features = false, path = "../../primitives/std" }
diff --git a/primitives/application-crypto/Cargo.toml b/primitives/application-crypto/Cargo.toml
index fff289e..4d21e7c 100644
--- a/primitives/application-crypto/Cargo.toml
+++ b/primitives/application-crypto/Cargo.toml
@@ -17,7 +17,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 sp-core = { version = "3.0.0", default-features = false, path = "../core" }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 sp-std = { version = "3.0.0", default-features = false, path = "../std" }
 sp-io = { version = "3.0.0", default-features = false, path = "../io" }
 
diff --git a/primitives/arithmetic/Cargo.toml b/primitives/arithmetic/Cargo.toml
index 76751cd..8a54263 100644
--- a/primitives/arithmetic/Cargo.toml
+++ b/primitives/arithmetic/Cargo.toml
@@ -19,7 +19,7 @@ codec = { package = "parity-scale-codec", version = "2.0.0", default-features =
 integer-sqrt = "0.1.2"
 num-traits = { version = "0.2.8", default-features = false }
 sp-std = { version = "3.0.0", default-features = false, path = "../std" }
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 sp-debug-derive = { version = "3.0.0", default-features = false, path = "../debug-derive" }
 
 [dev-dependencies]
diff --git a/primitives/chain-spec/Cargo.toml b/primitives/chain-spec/Cargo.toml
index ec3e731..2fba994 100644
--- a/primitives/chain-spec/Cargo.toml
+++ b/primitives/chain-spec/Cargo.toml
@@ -10,5 +10,5 @@ description = "Substrate chain configurations types."
 readme = "README.md"
 
 [dependencies]
-serde = { version = "1.0.101", features = ["derive"] }
+serde = { version = "1.0.126", features = ["derive"] }
 serde_json = "1.0.41"
diff --git a/primitives/core/Cargo.toml b/primitives/core/Cargo.toml
index 3d9cf12..7ae3ab6 100644
--- a/primitives/core/Cargo.toml
+++ b/primitives/core/Cargo.toml
@@ -16,7 +16,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 sp-std = { version = "3.0.0", default-features = false, path = "../std" }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 log = { version = "0.4.11", default-features = false }
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 byteorder = { version = "1.3.2", default-features = false }
 primitive-types = { version = "0.9.0", default-features = false, features = ["codec"] }
 impl-serde = { version = "0.3.0", optional = true }
diff --git a/primitives/finality-grandpa/Cargo.toml b/primitives/finality-grandpa/Cargo.toml
index c8ff2fc..7f9e03b 100644
--- a/primitives/finality-grandpa/Cargo.toml
+++ b/primitives/finality-grandpa/Cargo.toml
@@ -18,7 +18,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 grandpa = { package = "finality-grandpa", version = "0.13.0", default-features = false, features = ["derive-codec"] }
 log = { version = "0.4.8", optional = true }
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 sp-api = { version = "3.0.0", default-features = false, path = "../api" }
 sp-application-crypto = { version = "3.0.0", default-features = false, path = "../application-crypto" }
 sp-core = { version = "3.0.0", default-features = false, path = "../core" }
diff --git a/primitives/npos-elections/Cargo.toml b/primitives/npos-elections/Cargo.toml
index 79d4674..8206a70 100644
--- a/primitives/npos-elections/Cargo.toml
+++ b/primitives/npos-elections/Cargo.toml
@@ -14,7 +14,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 sp-std = { version = "3.0.0", default-features = false, path = "../std" }
 sp-npos-elections-compact = { version = "3.0.0", path = "./compact" }
 sp-arithmetic = { version = "3.0.0", default-features = false, path = "../arithmetic" }
diff --git a/primitives/rpc/Cargo.toml b/primitives/rpc/Cargo.toml
index de7e2bd..a8de3d9 100644
--- a/primitives/rpc/Cargo.toml
+++ b/primitives/rpc/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = { version = "1.0.101", features = ["derive"] }
+serde = { version = "1.0.126", features = ["derive"] }
 sp-core = { version = "3.0.0", path = "../core" }
 
 [dev-dependencies]
diff --git a/primitives/runtime/Cargo.toml b/primitives/runtime/Cargo.toml
index 0e4f616..3662a5f 100644
--- a/primitives/runtime/Cargo.toml
+++ b/primitives/runtime/Cargo.toml
@@ -15,7 +15,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 
 [dependencies]
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-core = { version = "3.0.0", default-features = false, path = "../core" }
 sp-application-crypto = { version = "3.0.0", default-features = false, path = "../application-crypto" }
diff --git a/primitives/serializer/Cargo.toml b/primitives/serializer/Cargo.toml
index 51b53b4..8f03d8f 100644
--- a/primitives/serializer/Cargo.toml
+++ b/primitives/serializer/Cargo.toml
@@ -14,5 +14,5 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-serde = "1.0.101"
+serde = "1.0.126"
 serde_json = "1.0.41"
diff --git a/primitives/storage/Cargo.toml b/primitives/storage/Cargo.toml
index 7a984d9..a8bfa11 100644
--- a/primitives/storage/Cargo.toml
+++ b/primitives/storage/Cargo.toml
@@ -15,7 +15,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 sp-std = { version = "3.0.0", default-features = false, path = "../std" }
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 impl-serde = { version = "0.3.1", optional = true }
 ref-cast = "1.0.0"
 sp-debug-derive = { version = "3.0.0", path = "../debug-derive" }
diff --git a/primitives/test-primitives/Cargo.toml b/primitives/test-primitives/Cargo.toml
index fbf29db..65aa7ed 100644
--- a/primitives/test-primitives/Cargo.toml
+++ b/primitives/test-primitives/Cargo.toml
@@ -15,7 +15,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 sp-application-crypto = { version = "3.0.0", default-features = false, path = "../application-crypto" }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-core = { version = "3.0.0", default-features = false, path = "../core" }
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../runtime" }
 parity-util-mem = { version = "0.9.0", default-features = false, features = ["primitive-types"] }
 
diff --git a/primitives/transaction-pool/Cargo.toml b/primitives/transaction-pool/Cargo.toml
index d431e44..4d009d1 100644
--- a/primitives/transaction-pool/Cargo.toml
+++ b/primitives/transaction-pool/Cargo.toml
@@ -19,7 +19,7 @@ codec = { package = "parity-scale-codec", version = "2.0.0", optional = true }
 derive_more = { version = "0.99.11", optional = true }
 futures = { version = "0.3.1", optional = true }
 log = { version = "0.4.8", optional = true }
-serde = { version = "1.0.101", features = ["derive"], optional = true}
+serde = { version = "1.0.126", features = ["derive"], optional = true}
 sp-api = { version = "3.0.0", default-features = false, path = "../api" }
 sp-blockchain = { version = "3.0.0", optional = true, path = "../blockchain" }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../runtime" }
diff --git a/primitives/version/Cargo.toml b/primitives/version/Cargo.toml
index bfb9a74..8c749ce 100644
--- a/primitives/version/Cargo.toml
+++ b/primitives/version/Cargo.toml
@@ -16,7 +16,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 impl-serde = { version = "0.3.1", optional = true }
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ["derive"] }
 sp-std = { version = "3.0.0", default-features = false, path = "../std" }
 sp-runtime = { version = "3.0.0", default-features = false, path = "../runtime" }
diff --git a/test-utils/client/Cargo.toml b/test-utils/client/Cargo.toml
index 1f62e32..de5f340 100644
--- a/test-utils/client/Cargo.toml
+++ b/test-utils/client/Cargo.toml
@@ -17,7 +17,7 @@ futures = "0.3.9"
 futures01 = { package = "futures", version = "0.1.29" }
 hash-db = "0.15.2"
 hex = "0.4"
-serde = "1.0.55"
+serde = "1.0.126"
 serde_json = "1.0.55"
 sc-client-api = { version = "3.0.0", path = "../../client/api" }
 sc-client-db = { version = "0.9.0", features = ["test-helpers"], path = "../../client/db" }
diff --git a/test-utils/runtime/Cargo.toml b/test-utils/runtime/Cargo.toml
index 1a841ac..780bf02 100644
--- a/test-utils/runtime/Cargo.toml
+++ b/test-utils/runtime/Cargo.toml
@@ -48,7 +48,7 @@ sp-externalities = { version = "0.9.0", default-features = false, path = "../../
 # 3rd party
 cfg-if = "1.0"
 log = { version = "0.4.8", optional = true }
-serde = { version = "1.0.101", optional = true, features = ["derive"] }
+serde = { version = "1.0.126", optional = true, features = ["derive"] }
 
 [dev-dependencies]
 sc-block-builder = { version = "0.9.0", path = "../../client/block-builder" }
diff --git a/utils/frame/benchmarking-cli/Cargo.toml b/utils/frame/benchmarking-cli/Cargo.toml
index c810bd4..8b5f4cb 100644
--- a/utils/frame/benchmarking-cli/Cargo.toml
+++ b/utils/frame/benchmarking-cli/Cargo.toml
@@ -26,7 +26,7 @@ sp-state-machine = { version = "0.9.0", path = "../../../primitives/state-machin
 codec = { version = "2.0.0", package = "parity-scale-codec" }
 structopt = "0.3.8"
 chrono = "0.4"
-serde = "1.0.116"
+serde = "1.0.126"
 handlebars = "3.5.0"
 Inflector = "0.11.4"
 
diff --git a/utils/frame/rpc/system/Cargo.toml b/utils/frame/rpc/system/Cargo.toml
index ea8d97a..5572c43 100644
--- a/utils/frame/rpc/system/Cargo.toml
+++ b/utils/frame/rpc/system/Cargo.toml
@@ -20,7 +20,7 @@ jsonrpc-core = "15.1.0"
 jsonrpc-core-client = "15.1.0"
 jsonrpc-derive = "15.1.0"
 log = "0.4.8"
-serde = { version = "1.0.101", features = ["derive"] }
+serde = { version = "1.0.126", features = ["derive"] }
 sp-runtime = { version = "3.0.0", path = "../../../../primitives/runtime" }
 sp-api = { version = "3.0.0", path = "../../../../primitives/api" }
 frame-system-rpc-runtime-api = { version = "3.0.0", path = "../../../../frame/system/rpc/runtime-api" }