diff --git a/vendor/zlib b/vendor/zlib
index 252f4126..d4283720 160000
--- a/vendor/zlib
+++ b/vendor/zlib
@@ -1 +1 @@
-Subproject commit 252f4126e453d90d30f8faa9945e491e89fdc70d
+Subproject commit d4283720a0022672387f98356a43d5920f3f2d5b