diff --git a/CMakeLists.txt b/CMakeLists.txt
index b44f14a6..4bf4ce97 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@ project(k4EDM4hep2LcioConv)
 
 # project version
 set( ${PROJECT_NAME}_VERSION_MAJOR 0 )
-set( ${PROJECT_NAME}_VERSION_MINOR 3 )
+set( ${PROJECT_NAME}_VERSION_MINOR 4 )
 set( ${PROJECT_NAME}_VERSION_PATCH 0 )
 set( ${PROJECT_NAME}_VERSION  "${${PROJECT_NAME}_VERSION_MAJOR}.${${PROJECT_NAME}_VERSION_MINOR}.${${PROJECT_NAME}_VERSION_PATCH}" )