diff --git a/deps/zlib b/deps/zlib
index ac8f12c..643e17b 160000
--- a/deps/zlib
+++ b/deps/zlib
@@ -1 +1 @@
-Subproject commit ac8f12c97d1afd9bafa9c710f827d40a407d3266
+Subproject commit 643e17b7498d12ab8d15565662880579692f769d