diff --git a/CMakeLists.txt b/CMakeLists.txt
index 680f96f..bb92b87 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.1)
+cmake_minimum_required(VERSION 3.20)
 
 project(rang 
     VERSION 3.2.0