diff --git a/rosegarden.spec b/rosegarden.spec
index ebc1326..629cefe 100644
--- a/rosegarden.spec
+++ b/rosegarden.spec
@@ -1,6 +1,6 @@
 %define majver %(echo %version | cut -d. -f1-2)
 Name:          rosegarden
-Version:       22.12.1
+Version:       23.12
 Release:       1mamba
 Summary:       A professional audio and MIDI sequencer, score editor and more
 Group:         Graphical Desktop/Applications/Multimedia
@@ -8,7 +8,7 @@ Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           https://www.rosegardenmusic.com/
-Source:        http://downloads.sourceforge.net/project/rosegarden/rosegarden/%{majver}/rosegarden-%{version}.tar.bz2
+Source:        http://downloads.sourceforge.net/project/rosegarden/rosegarden/%{majver}/rosegarden-%{version}.tar.xz
 Patch1:        %{name}-10.04-desktop_it.patch
 Patch2:        %{name}-gcc4.patch
 Patch3:        %{name}-qcanvasgroupableitem.patch
@@ -79,6 +79,9 @@ A professional audio and MIDI sequencer, score editor and general-purpose music
 %doc AUTHORS COPYING
 
 %changelog
+* Wed Dec 06 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 23.12-1mamba
+- update to 23.12
+
 * Fri Dec 23 2022 Automatic Build System <autodist@mambasoft.it> 22.12.1-1mamba
 - automatic version update by autodist