diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index b257d1d..fbafbc6 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -18,7 +18,7 @@ set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
-set(SAVETOOL_PROJECT_VERSION 1.3.5)
+set(SAVETOOL_PROJECT_VERSION 1.4.0-pre)
 
 find_package(Corrade REQUIRED Main Containers Utility)
 find_package(Magnum REQUIRED GL Sdl2Application)