diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0bf9700c5..205671ac8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@ else()
     endif()
 endif()
 
-project (sfizz VERSION 0.3.1 LANGUAGES CXX C)
+project (sfizz VERSION 0.4.0 LANGUAGES CXX C)
 set (PROJECT_DESCRIPTION "A library to load SFZ description files and use them to render music.")
 
 # External configuration CMake scripts