diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3b0670e..f3ffec1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.20)
+cmake_minimum_required(VERSION 4.2)
 project(am_i_up)
 
 find_package(ament_cmake REQUIRED)