diff --git a/Cargo.lock b/Cargo.lock
index 39ba13f9e..b860977be 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2347,9 +2347,9 @@ dependencies = [
 
 [[package]]
 name = "libz-sys"
-version = "1.1.29"
+version = "1.1.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85bc9657773828b90eeb625adff10eeac83cc21bbfd8e23a03eaa8a33c9e28d9"
+checksum = "ff20308ecabd635a2dc1dd5834a86c462cca20efba1d5d3ddab1f8aea3455cb2"
 dependencies = [
  "cc",
  "libc",