diff --git a/libqmi.spec b/libqmi.spec
index 0909a4a..0386d7c 100644
--- a/libqmi.spec
+++ b/libqmi.spec
@@ -1,5 +1,5 @@
 Name:          libqmi
-Version:       1.28.4
+Version:       1.28.6
 Release:       1mamba
 Summary:       QMI modem protocol helper library
 Group:         System/Libraries
@@ -84,6 +84,9 @@ This package contains utility applications for %{name}.
 %{_mandir}/man1/qmi-firmware-update.1*
 
 %changelog
+* Sun Jun 06 2021 Automatic Build System <autodist@mambasoft.it> 1.28.6-1mamba
+- automatic version update by autodist
+
 * Sun May 16 2021 Automatic Build System <autodist@mambasoft.it> 1.28.4-1mamba
 - automatic version update by autodist