diff --git a/Cargo.lock b/Cargo.lock
index 8649b859875..5cb7e9c98dc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -749,9 +749,9 @@ checksum = "8f1e260c3a9040a7c19a12468758f4c16f31a81a1fe087482be9570ec864bb6c"
 
 [[package]]
 name = "byte-slice-cast"
-version = "1.2.0"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d30c751592b77c499e7bce34d99d67c2c11bdc0574e9a488ddade14150a4698"
+checksum = "87c5fdd0166095e1d463fc6cc01aa8ce547ad77a4e84d42eb6762b084e28067e"
 
 [[package]]
 name = "byte-tools"
@@ -6637,9 +6637,9 @@ dependencies = [
 
 [[package]]
 name = "parity-scale-codec"
-version = "3.1.5"
+version = "3.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9182e4a71cae089267ab03e67c99368db7cd877baf50f931e5d6d4b71e195ac0"
+checksum = "366e44391a8af4cfd6002ef6ba072bae071a96aafca98d7d448a34c5dca38b6a"
 dependencies = [
  "arrayvec 0.7.2",
  "bitvec",
diff --git a/client/relay-chain-interface/Cargo.toml b/client/relay-chain-interface/Cargo.toml
index ae39b02ed9d..c84a4265d0c 100644
--- a/client/relay-chain-interface/Cargo.toml
+++ b/client/relay-chain-interface/Cargo.toml
@@ -23,4 +23,4 @@ derive_more = "0.99.2"
 async-trait = "0.1.57"
 thiserror = "1.0.35"
 jsonrpsee-core = "0.15.1"
-parity-scale-codec = "3.1.5"
+parity-scale-codec = "3.2.1"
diff --git a/client/relay-chain-rpc-interface/Cargo.toml b/client/relay-chain-rpc-interface/Cargo.toml
index 52ce2a0f3bd..188f709baeb 100644
--- a/client/relay-chain-rpc-interface/Cargo.toml
+++ b/client/relay-chain-rpc-interface/Cargo.toml
@@ -22,7 +22,7 @@ tokio = { version = "1.21.1", features = ["sync"] }
 
 futures = "0.3.24"
 futures-timer = "3.0.2"
-parity-scale-codec = "3.1.5"
+parity-scale-codec = "3.2.1"
 parking_lot = "0.12.1"
 jsonrpsee = { version = "0.15.1", features = ["ws-client"] }
 tracing = "0.1.36"
diff --git a/pallets/session-benchmarking/Cargo.toml b/pallets/session-benchmarking/Cargo.toml
index a9e87247148..e30b460161f 100644
--- a/pallets/session-benchmarking/Cargo.toml
+++ b/pallets/session-benchmarking/Cargo.toml
@@ -13,7 +13,7 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-parity-scale-codec = { version = "3.1.5", default-features = false }
+parity-scale-codec = { version = "3.2.1", default-features = false }
 sp-std = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
 sp-runtime = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
 frame-support = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }