diff --git a/polkadot/Cargo.lock b/polkadot/Cargo.lock
index 6aabb31c39..f8c08e2a39 100644
--- a/polkadot/Cargo.lock
+++ b/polkadot/Cargo.lock
@@ -3289,9 +3289,9 @@ checksum = "b294d6fa9ee409a054354afc4352b0b9ef7ca222c69b8812cbea9e7d2bf3783f"
 
 [[package]]
 name = "libc"
-version = "0.2.100"
+version = "0.2.101"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1fa8cddc8fbbee11227ef194b5317ed014b8acbf15139bd716a18ad3fe99ec5"
+checksum = "3cb00336871be5ed2c8ed44b60ae9959dc5b9f08539422ed43f09e34ecaeba21"
 
 [[package]]
 name = "libloading"
diff --git a/polkadot/node/core/pvf/Cargo.toml b/polkadot/node/core/pvf/Cargo.toml
index 8bd7c81682..73cf95b69d 100644
--- a/polkadot/node/core/pvf/Cargo.toml
+++ b/polkadot/node/core/pvf/Cargo.toml
@@ -15,7 +15,7 @@ async-process = "1.1.0"
 assert_matches = "1.4.0"
 futures = "0.3.15"
 futures-timer = "3.0.2"
-libc = "0.2.100"
+libc = "0.2.101"
 slotmap = "1.0"
 tracing = "0.1.26"
 pin-project = "1.0.8"