diff --git a/step.spec b/step.spec
index 19bf30b..76bcf07 100644
--- a/step.spec
+++ b/step.spec
@@ -1,5 +1,5 @@
 Name:          step
-Version:       21.04.0
+Version:       21.04.1
 Release:       1mamba
 Summary:       Interactive Physical Simulator
 Group:         Graphical Desktop/Applications/Educational
@@ -120,6 +120,9 @@ exit 0
 #ChangeLog README TODO
 
 %changelog
+* Thu May 13 2021 Automatic Build System <autodist@mambasoft.it> 21.04.1-1mamba
+- automatic version update by autodist
+
 * Fri Apr 23 2021 Automatic Build System <autodist@mambasoft.it> 21.04.0-1mamba
 - automatic version update by autodist