diff --git a/external/CppUTest/0002-Fix-cmake-4.0-compatibility.patch b/external/CppUTest/0002-Fix-cmake-4.0-compatibility.patch
new file mode 100644
index 0000000..8aa9ff2
--- /dev/null
+++ b/external/CppUTest/0002-Fix-cmake-4.0-compatibility.patch
@@ -0,0 +1,29 @@
+From 1147a71cfa5657b13c13d10194d8a5b4c28e1709 Mon Sep 17 00:00:00 2001
+From: Gyorgy Szing <gyorgy.szing@arm.com>
+Date: Fri, 18 Jul 2025 12:17:46 +0200
+Subject: [PATCH 1/1] Fix cmake 4.0 compatibility
+
+Cmake 4.0 dropped compatibility to cmake versions below 3.5. Update the
+required version on the cmake file as a workaround.
+
+Signed-off-by: Gyorgy Szing <gyorgy.szing@arm.com>
+---
+ CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index d9ca865f..b30e7d77 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -4,7 +4,7 @@ set(CppUTest_version_major 3)
+ set(CppUTest_version_minor 8)
+ 
+ # 2.6.3 is needed for ctest support
+-cmake_minimum_required(VERSION 2.8.7)
++cmake_minimum_required(VERSION 3.8...3.31)
+ 
+ # Check for functions before setting a lot of stuff
+ include(CheckFunctionExists)
+-- 
+2.34.1
+