diff --git a/rocs.spec b/rocs.spec
index 0f28545..e4ecf9b 100644
--- a/rocs.spec
+++ b/rocs.spec
@@ -1,5 +1,5 @@
 Name:          rocs
-Version:       20.08.3
+Version:       20.12.0
 Release:       1mamba
 Summary:       Graph Theory Tool for Professors and Students
 Group:         Graphical Desktop/Applications/Educational
@@ -123,6 +123,9 @@ exit 0
 %{_libdir}/librocsgraphtheory.so
 
 %changelog
+* Fri Dec 11 2020 Automatic Build System <autodist@mambasoft.it> 20.12.0-1mamba
+- automatic version update by autodist
+
 * Fri Nov 06 2020 Automatic Build System <autodist@mambasoft.it> 20.08.3-1mamba
 - automatic version update by autodist