diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7bc803dd..6a30dc20 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.13.4)
+cmake_minimum_required(VERSION 3.20.0)
 
 if(NOT DEFINED OPENCL_CLANG_BUILD_EXTERNAL)
   # check if we build inside llvm or not