diff --git a/polkadot/Cargo.lock b/polkadot/Cargo.lock
index d98feaa66d..9d48d68a7f 100644
--- a/polkadot/Cargo.lock
+++ b/polkadot/Cargo.lock
@@ -3499,9 +3499,9 @@ checksum = "b294d6fa9ee409a054354afc4352b0b9ef7ca222c69b8812cbea9e7d2bf3783f"
 
 [[package]]
 name = "libc"
-version = "0.2.91"
+version = "0.2.98"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8916b1f6ca17130ec6568feccee27c156ad12037880833a3b842a823236502e7"
+checksum = "320cfe77175da3a483efed4bc0adc1968ca050b098ce4f2f1c13a56626128790"
 
 [[package]]
 name = "libloading"
diff --git a/polkadot/node/core/pvf/Cargo.toml b/polkadot/node/core/pvf/Cargo.toml
index cfd60314fe..c7a0afbdc0 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 = "0.2.81"
+libc = "0.2.98"
 slotmap = "1.0"
 tracing = "0.1.26"
 pin-project = "1.0.7"