diff --git a/polkadot/Cargo.lock b/polkadot/Cargo.lock
index 8be6b8548e..fc77b190d0 100644
--- a/polkadot/Cargo.lock
+++ b/polkadot/Cargo.lock
@@ -675,9 +675,9 @@ dependencies = [
 
 [[package]]
 name = "bounded-vec"
-version = "0.4.0"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "afdd1dffefe5fc66262a524b91087c43b16e478b2e3dc49eb11b0e2fd6b6ec90"
+checksum = "b47cca82fca99417fe405f09d93bb8fff90bdd03d13c631f18096ee123b4281c"
 dependencies = [
  "thiserror",
 ]
diff --git a/polkadot/node/primitives/Cargo.toml b/polkadot/node/primitives/Cargo.toml
index fb72a91bde..1957ab9eb7 100644
--- a/polkadot/node/primitives/Cargo.toml
+++ b/polkadot/node/primitives/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2018"
 description = "Primitives types for the Node-side"
 
 [dependencies]
-bounded-vec = "0.4"
+bounded-vec = "0.5"
 futures = "0.3.19"
 polkadot-primitives = { path = "../../primitives" }
 parity-scale-codec = { version = "2.3.1", default-features = false, features = ["derive"] }