diff --git a/Polyhedron/demo/Polyhedron/CMakeLists.txt b/Polyhedron/demo/Polyhedron/CMakeLists.txt
index 789681e690b..0af522debc3 100644
--- a/Polyhedron/demo/Polyhedron/CMakeLists.txt
+++ b/Polyhedron/demo/Polyhedron/CMakeLists.txt
@@ -2,7 +2,7 @@
 
 project( Polyhedron )
 
-cmake_minimum_required(VERSION 2.4)
+cmake_minimum_required(VERSION 2.4.5)
 
 set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)