diff --git a/WORKSPACE b/WORKSPACE
index 4a84cbec..a15bffdb 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -51,7 +51,7 @@ new_http_archive(
     build_file = "zlib.BUILD",
     sha256 = "36658cb768a54c1d4dec43c3116c27ed893e88b02ecfcb44f2166f9c0b7f2a0d",
     strip_prefix = "zlib-1.2.8",
-    url = "http://zlib.net/zlib-1.2.8.tar.gz",
+    url = "http://bazel-mirror.storage.googleapis.com/zlib.net/zlib-1.2.8.tar.gz",
 )
 
 # TODO: Replace with hermetic build