diff --git a/src/Makefile.defs b/src/Makefile.defs
index 9b809b8bfa3..6cf372786df 100644
--- a/src/Makefile.defs
+++ b/src/Makefile.defs
@@ -106,7 +106,7 @@ INSTALL_FLAVOUR=$(FLAVOUR)
 # version number
 VERSION = 5
 PATCHLEVEL = 1
-SUBLEVEL = 4
+SUBLEVEL = 5
 EXTRAVERSION =
 
 # memory manager switcher