diff --git a/CMakeLists.txt b/CMakeLists.txt
index 235baf4..7a5ea97 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,7 +12,7 @@ PROJECT( MarlinTrkProcessors )
 # project version
 SET( ${PROJECT_NAME}_VERSION_MAJOR 2 )
 SET( ${PROJECT_NAME}_VERSION_MINOR 9 )
-SET( ${PROJECT_NAME}_VERSION_PATCH 0 )
+SET( ${PROJECT_NAME}_VERSION_PATCH 1 )
 
 cmake_policy(SET CMP0008 NEW)