--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,7 +18,7 @@ if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
 	endif()
 endif()
 
-cmake_minimum_required(VERSION 2.6)
+cmake_minimum_required(VERSION 2.6...4.0)
 
 
 #-----------------------------------------------------------------------------