diff --git a/CMakeLists.txt b/CMakeLists.txt
index eaa652b..8c9ff65 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,9 +1,9 @@
 # CMakeList.txt : CMake project for ImageMan, include source and define
 # project specific logic here.
 #
-cmake_minimum_required(VERSION 3.19)
+cmake_minimum_required(VERSION 3.18)
 
-if(${CMAKE_VERSION} VERSION_LESS 3.19)
+if(${CMAKE_VERSION} VERSION_LESS 3.18)
     cmake_policy(VERSION ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION})
 endif()