diff --git a/Cargo.lock b/Cargo.lock
index 4eb64d4..7b9b2c3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -76,9 +76,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.105"
+version = "0.2.133"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "869d572136620d55835903746bcb5cdc54cb2851fd0aeec53220b4bb65ef3013"
+checksum = "c0f80d65747a3e43d1596c7c5492d95d5edddaabd45a7fcdb02b95f644164966"
 
 [[package]]
 name = "memchr"