diff --git a/src/_bcrypt/Cargo.lock b/src/_bcrypt/Cargo.lock
index 76bf3367..55aaa148 100644
--- a/src/_bcrypt/Cargo.lock
+++ b/src/_bcrypt/Cargo.lock
@@ -166,9 +166,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.187"
+version = "0.2.189"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7743783ea728ef5c31194c6590797eed286449b4a4e87d626d8a51f0a94e732"
+checksum = "3eaf3ede3fee6db1a4c2ee091bf8a8b4dccdc6d17f656fb07896ee72867612f2"
 
 [[package]]
 name = "once_cell"