diff --git a/soundfont-Unison.spec b/soundfont-Unison.spec
index 4621d14..d2aacaa 100644
--- a/soundfont-Unison.spec
+++ b/soundfont-Unison.spec
@@ -1,6 +1,6 @@
 Name:          soundfont-Unison
-Version:       1.0
-Release:       6mamba
+Version:       2.53.3
+Release:       1mamba
 Summary:       A soundfont collection for MIDI synthetizers
 Group:         System/Multimedia
 Vendor:        openmamba
@@ -32,6 +32,9 @@ install -D -m 0644 %{SOURCE1} %{buildroot}%{_docdir}/%{name}/LICENSE
 %{_docdir}/soundfont-Unison/LICENSE
 
 %changelog
+* Mon Oct 09 2023 Automatic Build System <autodist@mambasoft.it> 2.53.3-1mamba
+- automatic update by autodist
+
 * Mon Oct 09 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 1.0-6mamba
 - updated URL, Source URL and License