diff --git a/CMakeLists.txt b/CMakeLists.txt
index 780aa10..82d84ac 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,5 @@
-cmake_minimum_required(VERSION 3.27)
+cmake_minimum_required(VERSION 3.20)
+
 project(dxbc LANGUAGES CXX)
 
 option(BUILD_EXAMPLE "Build example application" ON)