diff --git a/kmplot.spec b/kmplot.spec
index 5004398..81d324f 100644
--- a/kmplot.spec
+++ b/kmplot.spec
@@ -1,5 +1,5 @@
 Name:          kmplot
-Version:       4.13.0
+Version:       4.13.1
 Release:       1mamba
 Summary:       Mathematical Function Plotter
 Group:         Graphical Desktop/Applications/Educational
@@ -90,6 +90,9 @@ exit 0
 %doc COPYING COPYING.DOC TODO
 
 %changelog
+* Mon May 19 2014 Automatic Build System <autodist@mambasoft.it> 4.13.1-1mamba
+- automatic version update by autodist
+
 * Thu Apr 17 2014 Automatic Build System <autodist@mambasoft.it> 4.13.0-1mamba
 - automatic version update by autodist