diff --git a/Cargo.lock b/Cargo.lock
index a380766b..770bea0c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -627,9 +627,9 @@ checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 
 [[package]]
 name = "libc"
-version = "0.2.167"
+version = "0.2.168"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09d6582e104315a817dff97f75133544b2e094ee22447d2acf4a74e189ba06fc"
+checksum = "5aaeb2981e0606ca11d79718f8bb01164f1d6ed75080182d3abf017e6d244b6d"
 
 [[package]]
 name = "libm"
diff --git a/Cargo.toml b/Cargo.toml
index 00d05011..eb84e964 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ include = ["src/**/*", "Cargo.toml", "LICENSE*", "COPYRIGHT"]
 unicode-width = "0.2.0"
 
 [target.'cfg(unix)'.dependencies]
-libc = "0.2.167"
+libc = "0.2.168"
 
 [target.'cfg(windows)'.dependencies]
 winapi = { version = "0.3.9", default-features = false, features = ["wincon"] }