diff --git a/src/zlib b/src/zlib
index da607da7..99623ef7 160000
--- a/src/zlib
+++ b/src/zlib
@@ -1 +1 @@
-Subproject commit da607da739fa6047df13e66a2af6b8bec7c2a498
+Subproject commit 99623ef7097352da7993ba614161fd6a311e046e