diff --git a/src/uucore/Cargo.toml b/src/uucore/Cargo.toml
index 98b8282dd..946d78bf1 100644
--- a/src/uucore/Cargo.toml
+++ b/src/uucore/Cargo.toml
@@ -9,7 +9,7 @@ failure = { version = "0.1.1", optional = true }
 failure_derive = { version = "0.1.1", optional = true }
 time = { version = "0.1.38", optional = true }
 data-encoding = { version = "^2.1", optional = true }
-libc = { version = "0.2.34", optional = true }
+libc = { version = "0.2.42", optional = true }
 
 [target.'cfg(target_os = "redox")'.dependencies]
 termion = "1.5"