diff --git a/CMakeLists.txt b/CMakeLists.txt
index c66c757e2ee3472961193ff966a821f9cd118c55..08ced21eac7957066566d92938d7f91581007091 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,7 +7,7 @@
 #      -DCMAKE_PREFIX_PATH='/dir1;/dir2;/dir3'
 #
 
-cmake_minimum_required (VERSION 3.14)
+cmake_minimum_required (VERSION 3.12)
 project (hepnos CXX)
 
 add_definitions (-g)