diff --git a/Cargo.lock b/Cargo.lock
index 261bc2bf..5c72fc59 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -873,9 +873,9 @@ checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 
 [[package]]
 name = "libc"
-version = "0.2.186"
+version = "0.2.188"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68ab91017fe16c622486840e4c83c9a37afeff978bd239b5293d61ece587de66"
+checksum = "22053b6a34f84abc97f9129e61334f40174659a1b9bd18c970b83db6a9a6348b"
 
 [[package]]
 name = "libm"