diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2fe02775f..0785c02b4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,7 @@ project(EDM4HEP LANGUAGES CXX)
 # project version
 SET( ${PROJECT_NAME}_VERSION_MAJOR 0 )
 SET( ${PROJECT_NAME}_VERSION_MINOR 10 )
-SET( ${PROJECT_NAME}_VERSION_PATCH 5 )
+SET( ${PROJECT_NAME}_VERSION_PATCH 99 )
 
 SET( ${PROJECT_NAME}_VERSION  "${${PROJECT_NAME}_VERSION_MAJOR}.${${PROJECT_NAME}_VERSION_MINOR}.${${PROJECT_NAME}_VERSION_PATCH}" )