diff --git a/polkadot/Cargo.lock b/polkadot/Cargo.lock
index 1be614d1d5..cd50ba22e9 100644
--- a/polkadot/Cargo.lock
+++ b/polkadot/Cargo.lock
@@ -5913,7 +5913,7 @@ dependencies = [
  "polkadot-node-subsystem-util",
  "polkadot-primitives",
  "rand 0.8.4",
- "rand_chacha 0.3.0",
+ "rand_chacha 0.3.1",
  "sc-keystore",
  "sp-application-crypto",
  "sp-consensus-babe",
@@ -6677,7 +6677,7 @@ dependencies = [
  "parity-scale-codec",
  "polkadot-primitives",
  "rand 0.8.4",
- "rand_chacha 0.3.0",
+ "rand_chacha 0.3.1",
  "rustc-hex",
  "sc-keystore",
  "serde",
@@ -7317,7 +7317,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2e7573632e6454cf6b99d7aac4ccca54be06da05aca2ef7423d22d27d4d4bcd8"
 dependencies = [
  "libc",
- "rand_chacha 0.3.0",
+ "rand_chacha 0.3.1",
  "rand_core 0.6.1",
  "rand_hc 0.3.0",
 ]
@@ -7334,9 +7334,9 @@ dependencies = [
 
 [[package]]
 name = "rand_chacha"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e12735cf05c9e10bf21534da50a147b924d555dc7a547c42e6bb2d5b6017ae0d"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
 dependencies = [
  "ppv-lite86",
  "rand_core 0.6.1",
diff --git a/polkadot/node/network/gossip-support/Cargo.toml b/polkadot/node/network/gossip-support/Cargo.toml
index bd223e6e7c..acce9e2229 100644
--- a/polkadot/node/network/gossip-support/Cargo.toml
+++ b/polkadot/node/network/gossip-support/Cargo.toml
@@ -16,7 +16,7 @@ polkadot-primitives = { path = "../../../primitives" }
 
 futures = "0.3.15"
 rand = { version = "0.8.3", default-features = false }
-rand_chacha = { version = "0.3.0", default-features = false }
+rand_chacha = { version = "0.3.1", default-features = false }
 tracing = "0.1.26"
 
 [dev-dependencies]
diff --git a/polkadot/runtime/parachains/Cargo.toml b/polkadot/runtime/parachains/Cargo.toml
index 0c16d11db5..a9d68c3a8e 100644
--- a/polkadot/runtime/parachains/Cargo.toml
+++ b/polkadot/runtime/parachains/Cargo.toml
@@ -40,7 +40,7 @@ primitives = { package = "polkadot-primitives", path = "../../primitives", defau
 libsecp256k1 = { version = "0.3.5", default-features = false, optional = true }
 
 rand = { version = "0.8.3", default-features = false }
-rand_chacha = { version = "0.3.0", default-features = false }
+rand_chacha = { version = "0.3.1", default-features = false }
 
 [dev-dependencies]
 futures = "0.3.15"