diff --git a/kontactinterface.spec b/kontactinterface.spec
index 5080196..3569af3 100644
--- a/kontactinterface.spec
+++ b/kontactinterface.spec
@@ -1,7 +1,7 @@
 %define majver %(echo %version | cut -d. -f1-2)
 
 Name:          kontactinterface
-Version:       21.08.3
+Version:       21.12.0
 Release:       1mamba
 Summary:       KDE Frameworks 5 Kontact interface library
 Group:         System/Libraries
@@ -31,10 +31,10 @@ BuildRequires: libktextwidgets-devel
 BuildRequires: libkwidgetsaddons-devel
 BuildRequires: libkwindowsystem-devel
 BuildRequires: libkxmlgui-devel
-BuildRequires: libqt5-devel
 BuildRequires: libsolid-devel
 BuildRequires: libsonnet-devel
 BuildRequires: libstdc++6-devel
+BuildRequires: qt5-qtbase-devel
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
 BuildRequires: rpm-macros-kde5
@@ -107,6 +107,9 @@ exit 0
 %{_kde5_mkspecsdir}/qt_KontactInterface.pri
 
 %changelog
+* Fri Dec 10 2021 Automatic Build System <autodist@mambasoft.it> 21.12.0-1mamba
+- automatic version update by autodist
+
 * Thu Nov 04 2021 Automatic Build System <autodist@mambasoft.it> 21.08.3-1mamba
 - automatic version update by autodist