diff --git a/cantor.spec b/cantor.spec
index c9b2d7f..8399952 100644
--- a/cantor.spec
+++ b/cantor.spec
@@ -1,12 +1,12 @@
 Name:          cantor
-Version:       21.04.1
+Version:       21.04.2
 Release:       1mamba
 Summary:       KDE Frontend to Mathematical Software
 Group:         Graphical Desktop/Applications/Educational
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Davide Madrisan <davide.madrisan@gmail.com>
-URL:           https://www.kde.org
+URL:           https://kde.org/
 Source:        http://download.kde.org/stable/release-service/%{version}/src/cantor-%{version}.tar.xz
 Patch0:        cantor-20.04.0-luajit-5.1.patch
 License:       GPL
@@ -149,6 +149,9 @@ exit 0
 %{_libdir}/cmake/Cantor/Cantor*.cmake
 
 %changelog
+* Thu Jun 10 2021 Automatic Build System <autodist@mambasoft.it> 21.04.2-1mamba
+- automatic version update by autodist
+
 * Thu May 13 2021 Automatic Build System <autodist@mambasoft.it> 21.04.1-1mamba
 - automatic version update by autodist