diff --git a/cantor.spec b/cantor.spec
index 3a4cd66..a18cf0a 100644
--- a/cantor.spec
+++ b/cantor.spec
@@ -1,5 +1,5 @@
 Name:          cantor
-Version:       21.08.3
+Version:       21.12.0
 Release:       1mamba
 Summary:       KDE Frontend to Mathematical Software
 Group:         Graphical Desktop/Applications/Educational
@@ -141,7 +141,7 @@ exit 0
 %{_datadir}/kxmlgui5/cantor/cantor_*.rc
 %{_kde5_sharedir}/metainfo/org.kde.cantor.appdata.xml
 %{_datadir}/mime/packages/cantor.xml
-%doc COPYING COPYING.DOC
+%doc LICENSES
 
 %files devel
 %defattr(-,root,root)
@@ -152,6 +152,9 @@ exit 0
 %{_libdir}/cmake/Cantor/Cantor*.cmake
 
 %changelog
+* Mon Dec 13 2021 Automatic Build System <autodist@mambasoft.it> 21.12.0-1mamba
+- automatic version update by autodist
+
 * Thu Nov 04 2021 Automatic Build System <autodist@mambasoft.it> 21.08.3-1mamba
 - automatic version update by autodist