diff --git a/contrib/zlib/CMakeLists.txt b/contrib/zlib/CMakeLists.txt
index 5f1368adb..9d1fcc943 100644
--- a/contrib/zlib/CMakeLists.txt
+++ b/contrib/zlib/CMakeLists.txt
@@ -5,12 +5,17 @@ set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON)
 # See http://www.cmake.org/cmake/help/v3.0/policy/CMP0048.html
 cmake_policy(PUSH)
 if(CMAKE_MAJOR_VERSION GREATER 2)
-	cmake_policy(SET CMP0048 OLD)
+	cmake_policy(SET CMP0048 NEW)
 endif()
 project(zlib C)
+SET (ZLIB_VERSION_MAJOR 1)
+SET (ZLIB_VERSION_MINOR 2)
+SET (ZLIB_VERSION_PATCH 11)
+SET (ZLIB_VERSION ${ZLIB_VERSION_MAJOR}.${ZLIB_VERSION_MINOR}.${ZLIB_VERSION_PATCH})
+SET (ZLIB_SOVERSION 1)
+SET (PROJECT_VERSION "${ZLIB_VERSION}")
 cmake_policy(POP)
 
-set(VERSION "1.2.11.1")
 
 option(ASM686 "Enable building i686 assembly implementation")
 option(AMD64 "Enable building amd64 assembly implementation")