diff --git a/Cargo.toml b/Cargo.toml
index a0f3934c5c..240a3f0b7a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,7 +27,7 @@ targets = [
 ]
 
 [dependencies]
-libc = { version = "0.2.127", features = [ "extra_traits" ] }
+libc = { version = "0.2.133", features = [ "extra_traits" ] }
 bitflags = "1.1"
 cfg-if = "1.0"
 pin-utils = { version = "0.1.0", optional = true }