diff --git a/audiowaveform.spec b/audiowaveform.spec
index 90693dd..8ad5e94 100644
--- a/audiowaveform.spec
+++ b/audiowaveform.spec
@@ -1,5 +1,5 @@
 Name:          audiowaveform
-Version:       1.5.0
+Version:       1.5.1
 Release:       1mamba
 Summary:       C++ program to generate waveform data and render waveform images from audio files 
 Group:         Applications/Multimedia
@@ -50,5 +50,8 @@ C++ program to generate waveform data and render waveform images from audio file
 %doc COPYING
 
 %changelog
+* Sun Aug 01 2021 Automatic Build System <autodist@mambasoft.it> 1.5.1-1mamba
+- automatic version update by autodist
+
 * Fri Jul 23 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 1.5.0-1mamba
 - package created using the webbuild interface