diff --git a/CMakeLists.txt b/CMakeLists.txt
index 93152ddb42..c7c0b0f2d1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,7 +15,7 @@ set( CXX_STANDARD_REQUIRED ON)
 
 set(VERSION_MAJOR 4)
 set(VERSION_MINOR 0)
-set(VERSION_PATCH 5)
+set(VERSION_PATCH 6)
 #set(VERSION_SUFFIX rc3)
 
 if(VERSION_SUFFIX)