diff --git a/CMakeLists.txt b/CMakeLists.txt
index efedf74..effa1ec 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,8 @@
 # Copyright (c) 2012 Louis Dionne
 # Copyright (c) 2021-2022 Manticore Software LTD
 #
-cmake_minimum_required ( VERSION 3.17 )
+# Fix build with CMake 4
+cmake_minimum_required ( VERSION 3.5 )
 
 foreach (policy CMP0091 CMP0022)
 	if (POLICY ${policy})