diff --git a/tools/zlib/Makefile b/tools/zlib/Makefile
index 279851f75..58315b808 100644
--- a/tools/zlib/Makefile
+++ b/tools/zlib/Makefile
@@ -8,12 +8,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=zlib
-PKG_VERSION:=1.2.11
+PKG_VERSION:=1.2.12
 PKG_RELEASE:=1
 
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
-PKG_SOURCE_URL:=@SF/libpng http://www.zlib.net
-PKG_HASH:=4ff941449631ace0d4d203e3483be9dbc9da454084111f97ea0a2114e19bf066
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_URL:=https://github.com/madler/zlib
+PKG_MIRROR_HASH:=a162fc219763635f0c1591ec515d4b08684e4b0bfb4b1c8e65e4eab18d597c27
+PKG_SOURCE_VERSION:=21767c654d31d2dccdde4330529775c6c5fd5389
 
 PKG_LICENSE:=Zlib
 PKG_LICENSE_FILES:=README