diff --git a/kbounce.spec b/kbounce.spec
index 70f0c0c..21928bd 100644
--- a/kbounce.spec
+++ b/kbounce.spec
@@ -1,5 +1,5 @@
 Name:          kbounce
-Version:       17.08.3
+Version:       17.12.0
 Release:       1mamba
 Summary:       Ball Bouncing Game
 Group:         Graphical Desktop/Applications/Games
@@ -82,6 +82,9 @@ exit 0
 %doc COPYING COPYING.DOC COPYING.LIB
 
 %changelog
+* Wed Dec 20 2017 Automatic Build System <autodist@mambasoft.it> 17.12.0-1mamba
+- automatic version update by autodist
+
 * Fri Nov 10 2017 Automatic Build System <autodist@mambasoft.it> 17.08.3-1mamba
 - automatic version update by autodist