diff --git a/Cargo.lock b/Cargo.lock
index 4d121a3..20a48f2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -223,9 +223,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.174"
+version = "0.2.179"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1171693293099992e19cddea4e8b849964e9846f4acee11b3948bcc337be8776"
+checksum = "c5a2d376baa530d1238d133232d15e239abad80d05838b4b59354e5268af431f"
 
 [[package]]
 name = "libsystemd-sys"
diff --git a/libsystemd-sys/Cargo.toml b/libsystemd-sys/Cargo.toml
index f3836a5..66f9bd7 100644
--- a/libsystemd-sys/Cargo.toml
+++ b/libsystemd-sys/Cargo.toml
@@ -19,7 +19,7 @@ systemd_v245 = []
 
 [dependencies]
 cfg-if = "1.0.0"
-libc = "0.2.76"
+libc = "0.2.179"
 
 [build-dependencies]
 pkg-config = "0.3.18"