diff --git a/kmbox.spec b/kmbox.spec
index afb730f..dee30f3 100644
--- a/kmbox.spec
+++ b/kmbox.spec
@@ -1,7 +1,7 @@
 %define majver %(echo %version | cut -d. -f1-2)
 
 Name:          kmbox
-Version:       20.12.3
+Version:       21.04.0
 Release:       1mamba
 Summary:       KDE Frameworks 5 mailbox library
 Group:         System/Libraries
@@ -87,6 +87,9 @@ exit 0
 %{_kde5_mkspecsdir}/qt_KMbox.pri
 
 %changelog
+* Fri Apr 23 2021 Automatic Build System <autodist@mambasoft.it> 21.04.0-1mamba
+- automatic version update by autodist
+
 * Fri Mar 05 2021 Automatic Build System <autodist@mambasoft.it> 20.12.3-1mamba
 - automatic version update by autodist