diff --git a/deps/zlib b/deps/zlib
index 48c37410..643e17b7 160000
--- a/deps/zlib
+++ b/deps/zlib
@@ -1 +1 @@
-Subproject commit 48c3741002aca9dae84e9f2288ca149af14c9128
+Subproject commit 643e17b7498d12ab8d15565662880579692f769d