diff --git a/kubrick.spec b/kubrick.spec
index fd4f8df..0946ef3 100644
--- a/kubrick.spec
+++ b/kubrick.spec
@@ -1,5 +1,5 @@
 Name:          kubrick
-Version:       17.08.3
+Version:       17.12.0
 Release:       1mamba
 Summary:       3-D Game based on Rubik's Cube
 Group:         Graphical Desktop/Applications/Games
@@ -86,6 +86,9 @@ exit 0
 %doc AUTHORS COPYING COPYING.DOC
 
 %changelog
+* Thu Dec 21 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