diff --git a/Cargo.lock b/Cargo.lock
index a9119fc..1493d35 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3102,7 +3102,6 @@ name = "pvq-test-runner"
 version = "0.1.0"
 dependencies = [
  "clap",
- "hex",
  "parity-scale-codec",
  "polkavm",
  "pvq-executor",
diff --git a/Cargo.toml b/Cargo.toml
index c20cd7b..e3ba60e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -70,7 +70,6 @@ scale-info = { version = "2.11.3", default-features = false, features = [
     "derive",
 ] }
 tracing = { version = "0.1.40", default-features = false }
-hex = { version = "0.4" }
 
 # std
 clap = { version = "4.5.4", features = ["derive"] }
diff --git a/pvq-test-runner/Cargo.toml b/pvq-test-runner/Cargo.toml
index 1d92a05..a1a8f98 100644
--- a/pvq-test-runner/Cargo.toml
+++ b/pvq-test-runner/Cargo.toml
@@ -22,5 +22,3 @@ pvq-extension-fungibles = { workspace = true, features = ["std"] }
 pvq-primitives = { workspace = true, features = ["std"] }
 
 polkavm = { workspace = true, features = ["std"] }
-
-hex = { workspace = true, features = ["std"] }
diff --git a/pvq-test-runner/src/lib.rs b/pvq-test-runner/src/lib.rs
index c9f1777..4174fbe 100644
--- a/pvq-test-runner/src/lib.rs
+++ b/pvq-test-runner/src/lib.rs
@@ -1,6 +1,7 @@
 use parity_scale_codec::Encode;
 use pvq_extension::{extensions_impl, ExtensionsExecutor, InvokeSource};
 use sp_core::crypto::{AccountId32, Ss58Codec};
+use sp_core::hexdisplay::HexDisplay;
 
 #[derive(Encode)]
 #[allow(non_camel_case_types)]
@@ -75,7 +76,7 @@ impl TestRunner {
                 .encode(),
             );
         }
-        tracing::info!("Input data (hex): {}", hex::encode(&input_data));
+        tracing::info!("Input data (hex): {}", HexDisplay::from(&input_data));
         input_data
     }