diff --git a/CMakeLists.txt b/CMakeLists.txt
index 83e5093..a1a1175 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required( VERSION 3.1 )
+cmake_minimum_required( VERSION 3.5 )
 if( POLICY CMP0037 )
   cmake_policy(SET CMP0037 NEW)
 endif( POLICY CMP0037 )