diff --git a/CMakeLists.txt b/CMakeLists.txt
index a6afc4c..f670c39 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.20)
 
 project(class_loader)