diff --git a/contrib/zlib-ng b/contrib/zlib-ng
index 1b0ed32725e..9173b89d467 160000
--- a/contrib/zlib-ng
+++ b/contrib/zlib-ng
@@ -1 +1 @@
-Subproject commit 1b0ed32725e2c26d754e6fbc2e5e7490f8e8e711
+Subproject commit 9173b89d46799582d20a30578e0aa9788bc7d6e1