diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9ae4d7b3..c1023505 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,7 +10,7 @@
 ###########################################
 
 
-cmake_minimum_required( VERSION 2.8.12 )
+cmake_minimum_required( VERSION 3.1 )
 
 
 ##### general package setup