diff --git a/CMakeL10n.txt b/CMakeL10n.txt
index 061049432..266833a97 100644
--- a/CMakeL10n.txt
+++ b/CMakeL10n.txt
@@ -9,7 +9,7 @@
 #
 #################################################
 
-cmake_minimum_required( VERSION 3.1 )
+cmake_minimum_required( VERSION 3.5 )
 
 
 ##### include our cmake modules #################
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4d7af2bd5..36124f6fe 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,7 +10,7 @@
 #
 #################################################
 
-cmake_minimum_required( VERSION 3.1 )
+cmake_minimum_required( VERSION 3.5 )
 
 
 ##### general package setup #####################