diff --git a/Cargo.toml b/Cargo.toml
index d8d2fe3b..0c062d50 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,7 +33,7 @@ strobe = ["strobe-rs"]
 
 [dependencies]
 generic-array = "0.14.4"
-parity-scale-codec = { version = "1.3.5", optional = true, default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "2.1.1", optional = true, default-features = false, features = ["derive"] }
 quickcheck = { version = "0.9.2", optional = true }
 rand = { version = "0.7.3", optional = true }
 serde = { version = "1.0.116", optional = true, default-features = false, features = ["derive"] }