diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4b56858..62dea15 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.14.5)
 
-project(SDL_demo LANGUAGES C VERSION 9.0)
+project(SDL_demo LANGUAGES C VERSION 0.9)
 
 
 add_executable(SDLchip main.c chip.c)