diff --git a/tools/pioasm/CMakeLists.txt b/tools/pioasm/CMakeLists.txt
index 322408a..fc8e4b8 100644
--- a/tools/pioasm/CMakeLists.txt
+++ b/tools/pioasm/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.4)
+cmake_minimum_required(VERSION 3.5)
 project(pioasm CXX)
 
 set(CMAKE_CXX_STANDARD 11)