diff --git a/.gitmodules b/.gitmodules
index 61a4100..0affa75 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -27,4 +27,4 @@
 	url = https://github.com/svn2github/pcre.git
 [submodule "lib/zlib"]
 	path = lib/zlib
-	url = https://github.com/madler/zlib.git
+	url = https://github.com/cloudflare/zlib.git
diff --git a/lib/zlib b/lib/zlib
index cacf7f1..9465261 160000
--- a/lib/zlib
+++ b/lib/zlib
@@ -1 +1 @@
-Subproject commit cacf7f1d4e3d44d871b605da3b647f07d718623f
+Subproject commit 94652610e8cb2334440f03b4248ed26b53322d3d