diff --git a/Cargo.lock b/Cargo.lock
index c3a244e5f5b..a0ff6a51af2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1136,9 +1136,9 @@ dependencies = [
 
 [[package]]
 name = "deflate"
-version = "0.7.19"
+version = "0.7.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a6abb26e16e8d419b5c78662aa9f82857c2386a073da266840e474d5055ec86"
+checksum = "707b6a7b384888a70c8d2e8650b3e60170dfc6a67bb4aa67b6dfca57af4bedb4"
 dependencies = [
  "adler32",
  "byteorder",