diff --git a/kruler.spec b/kruler.spec
index 30a3093..d6487f4 100644
--- a/kruler.spec
+++ b/kruler.spec
@@ -1,5 +1,5 @@
 Name:          kruler
-Version:       17.08.3
+Version:       17.12.0
 Release:       1mamba
 Summary:       A ruler in inch, centimeter and pixel to check distances on the screen
 Group:         Graphical Desktop/Applications/Graphics
@@ -89,6 +89,9 @@ exit 0
 #TODO
 
 %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