diff --git a/Cargo.lock b/Cargo.lock
index 002011a65b9..5691abd48d4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4611,9 +4611,9 @@ checksum = "c41e0c4fef86961ac6d6f8a82609f55f31b05e4fce149ac5710e439df7619ba4"
 
 [[package]]
 name = "mach2"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19b955cdeb2a02b9117f121ce63aa52d08ade45de53e48fe6a38b39c10f6f709"
+checksum = "d640282b302c0bb0a2a8e0233ead9035e3bed871f0b7e81fe4a1ec829765db44"
 dependencies = [
  "libc",
 ]