diff --git a/plantuml.spec b/plantuml.spec
index 39fa51e..ccf2fc6 100644
--- a/plantuml.spec
+++ b/plantuml.spec
@@ -1,5 +1,5 @@
 Name:          plantuml
-Version:       1.2023.8
+Version:       1.2023.9
 Release:       1mamba
 Summary:       Generate diagrams from textual description
 Group:         Graphical Desktop/Applications/Graphics
@@ -44,6 +44,9 @@ chmod +x %{buildroot}%{_bindir}/plantuml
 %{_javadir}/plantuml.jar
 
 %changelog
+* Thu Jun 15 2023 Automatic Build System <autodist@mambasoft.it> 1.2023.9-1mamba
+- automatic version update by autodist
+
 * Mon May 22 2023 Automatic Build System <autodist@mambasoft.it> 1.2023.8-1mamba
 - automatic version update by autodist