diff --git a/CMakeLists.txt b/CMakeLists.txt
index f3e00b6..5d20336 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 
-cmake_minimum_required(VERSION 3.1)
+cmake_minimum_required(VERSION 3.5)
 project(Acutest C CXX)