diff --git a/Cargo.lock b/Cargo.lock
index c4c5cc43..7d682a6e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -848,9 +848,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.177"
+version = "0.2.181"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2874a2af47a2325c2001a6e6fad9b16a53b802102b528163885171cf92b15976"
+checksum = "459427e2af2b9c839b132acb702a1c654d95e10f8c326bfc2ad11310e458b1c5"
 
 [[package]]
 name = "libm"