diff --git a/kbackup.spec b/kbackup.spec
index 5f95867..2c45d08 100644
--- a/kbackup.spec
+++ b/kbackup.spec
@@ -1,7 +1,7 @@
 %define majver %(echo %version | cut -d. -f1-2)
 
 Name:          kbackup
-Version:       21.08.3
+Version:       21.12.0
 Release:       1mamba
 Summary:       KDE Frameworks 5 backup program with an easy to use User Interface
 Group:         Graphical Desktop/Applications/Utilities
@@ -34,9 +34,9 @@ BuildRequires: libkservice-devel
 BuildRequires: libkwidgetsaddons-devel
 BuildRequires: libkwindowsystem-devel
 BuildRequires: libkxmlgui-devel
-BuildRequires: libqt5-devel
 BuildRequires: libsolid-devel
 BuildRequires: libstdc++6-devel
+BuildRequires: qt5-qtbase-devel
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
 BuildRequires: rpm-macros-kde5
@@ -78,6 +78,9 @@ KDE Frameworks 5 backup program with an easy to use User Interface.
 
 
 %changelog
+* Thu Dec 09 2021 Automatic Build System <autodist@mambasoft.it> 21.12.0-1mamba
+- automatic version update by autodist
+
 * Fri Nov 05 2021 Automatic Build System <autodist@mambasoft.it> 21.08.3-1mamba
 - automatic version update by autodist