diff --git a/CMakeLists.txt b/CMakeLists.txt
index a36760e..3543894 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required( VERSION 2.8.12 )
+cmake_minimum_required( VERSION 3.1 )
 
 
 ##### general package setup #####################