diff --git a/src/_bcrypt/Cargo.lock b/src/_bcrypt/Cargo.lock
index 3e17abf..13b3911 100644
--- a/src/_bcrypt/Cargo.lock
+++ b/src/_bcrypt/Cargo.lock
@@ -188,9 +188,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.129"
+version = "0.2.131"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64de3cc433455c14174d42e554d4027ee631c4d046d43e3ecc6efc4636cdc7a7"
+checksum = "04c3b4822ccebfa39c02fc03d1534441b22ead323fa0f48bb7ddd8e6ba076a40"
 
 [[package]]
 name = "lock_api"