diff --git a/step.spec b/step.spec
index 045addb..1803460 100644
--- a/step.spec
+++ b/step.spec
@@ -1,5 +1,5 @@
 Name:          step
-Version:       4.13.2
+Version:       4.13.3
 Release:       1mamba
 Summary:       Interactive Physical Simulator
 Group:         Graphical Desktop/Applications/Educational
@@ -98,6 +98,9 @@ exit 0
 %doc AUTHORS COPYING COPYING.DOC ChangeLog README TODO
 
 %changelog
+* Tue Jul 15 2014 Automatic Build System <autodist@mambasoft.it> 4.13.3-1mamba
+- automatic version update by autodist
+
 * Fri Jun 13 2014 Automatic Build System <autodist@mambasoft.it> 4.13.2-1mamba
 - automatic version update by autodist