diff --git a/libsidplayfp.spec b/libsidplayfp.spec
index 77b73fa..f033a40 100644
--- a/libsidplayfp.spec
+++ b/libsidplayfp.spec
@@ -1,5 +1,5 @@
 Name:          libsidplayfp
-Version:       2.3.0
+Version:       2.3.1
 Release:       1mamba
 Summary:       A library to play Commodore 64 music
 Group:         System/Libraries
@@ -76,5 +76,8 @@ autoreconf -f -i
 %doc NEWS README TODO
 
 %changelog
+* Fri Dec 10 2021 Automatic Build System <autodist@mambasoft.it> 2.3.1-1mamba
+- automatic version update by autodist
+
 * Fri Nov 26 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 2.3.0-1mamba
 - package created using the webbuild interface