diff --git a/Cargo.lock b/Cargo.lock
index 39487f2..d9dcaf5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -199,9 +199,9 @@ checksum = "4852c654c9650d06a4293146ead04bedcf29861dc0de1115ca1492b7a27c50aa"
 
 [[package]]
 name = "libc"
-version = "0.2.179"
+version = "0.2.180"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c5a2d376baa530d1238d133232d15e239abad80d05838b4b59354e5268af431f"
+checksum = "bcc35a38544a891a5f7c865aca548a982ccb3b8650a5b06d0fd33a10283c56fc"
 
 [[package]]
 name = "one-step-kdf"