diff --git a/Cargo.lock b/Cargo.lock
index 843a091..b578633 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -239,9 +239,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.155"
+version = "0.2.156"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97b3888a4aecf77e811145cadf6eef5901f4782c53886191b2f693f24761847c"
+checksum = "a5f43f184355eefb8d17fc948dbecf6c13be3c141f20d834ae842193a448c72a"
 
 [[package]]
 name = "linux-raw-sys"