diff --git a/external/zlib b/external/zlib
index 21767c6..04f42ce 160000
--- a/external/zlib
+++ b/external/zlib
@@ -1 +1 @@
-Subproject commit 21767c654d31d2dccdde4330529775c6c5fd5389
+Subproject commit 04f42ceca40f73e2978b50e93806c2a18c1281fc