diff --git a/CMakeLists.txt b/CMakeLists.txt
index e37937345ea6ab53b772a4e4267c6450f3d10b0c..357c2bbb557ddb89cab8e0a8f0b46f328d565167 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8 FATAL_ERROR)
+cmake_minimum_required(VERSION 2.8.4 FATAL_ERROR)
 
 # ----------------------------------------------------------------------------
 # includes