diff --git a/Cargo.lock b/Cargo.lock
index 0934856..b34de6a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -879,9 +879,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.175"
+version = "0.2.189"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a82ae493e598baaea5209805c49bbf2ea7de956d50d7da0da1164f9c6d28543"
+checksum = "3eaf3ede3fee6db1a4c2ee091bf8a8b4dccdc6d17f656fb07896ee72867612f2"
 
 [[package]]
 name = "libm"