diff --git a/audiowaveform.spec b/audiowaveform.spec
index 16c727b..f946891 100644
--- a/audiowaveform.spec
+++ b/audiowaveform.spec
@@ -1,5 +1,5 @@
 Name:          audiowaveform
-Version:       1.8.1
+Version:       1.9.1
 Release:       1mamba
 Summary:       C++ program to generate waveform data and render waveform images from audio files 
 Group:         Applications/Multimedia
@@ -50,6 +50,9 @@ C++ program to generate waveform data and render waveform images from audio file
 %doc COPYING
 
 %changelog
+* Wed Oct 11 2023 Automatic Build System <autodist@mambasoft.it> 1.9.1-1mamba
+- automatic version update by autodist
+
 * Thu Jul 13 2023 Automatic Build System <autodist@mambasoft.it> 1.8.1-1mamba
 - automatic version update by autodist