diff --git a/Cargo.lock b/Cargo.lock
index f6329f3c..a2cd56f0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2131,9 +2131,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.139"
+version = "0.2.140"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
+checksum = "99227334921fae1a979cf0bfdfcc6b3e5ce376ef57e16fb6fb3ea2ed6095f80c"
 
 [[package]]
 name = "libm"
diff --git a/transports/tcp/Cargo.toml b/transports/tcp/Cargo.toml
index 4d89d80e..92b0c97d 100644
--- a/transports/tcp/Cargo.toml
+++ b/transports/tcp/Cargo.toml
@@ -15,7 +15,7 @@ async-io = { version = "1.2.0", optional = true }
 futures = "0.3.26"
 futures-timer = "3.0"
 if-watch = "3.0.0"
-libc = "0.2.80"
+libc = "0.2.140"
 libp2p-core = { version = "0.39.0", path = "../../core" }
 libp2p-identity = { version = "0.1.0", path = "../../identity" }
 log = "0.4.11"