diff --git a/calendarsupport.spec b/calendarsupport.spec
index 2a131cb..c31c1cc 100644
--- a/calendarsupport.spec
+++ b/calendarsupport.spec
@@ -1,7 +1,7 @@
 %define majver %(echo %version | cut -d. -f1-2)
 
 Name:          calendarsupport
-Version:       21.08.3
+Version:       21.12.0
 Release:       1mamba
 Summary:       KDE Frameworks 5 calendar support library
 Group:         System/Libraries
@@ -14,6 +14,7 @@ Source:        http://download.kde.org/stable/release-service/%{version}/src/cal
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
+BuildRequires: libX11-devel
 BuildRequires: libakonadi-calendar-devel
 BuildRequires: libakonadi-devel
 BuildRequires: libakonadi-notes-devel
@@ -39,9 +40,9 @@ BuildRequires: libkservice-devel
 BuildRequires: libkwidgetsaddons-devel
 BuildRequires: libkwindowsystem-devel
 BuildRequires: libpimcommon-devel
-BuildRequires: libqt5-devel
 BuildRequires: libsolid-devel
 BuildRequires: libstdc++6-devel
+BuildRequires: qt5-qtbase-devel
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
 BuildRequires: rpm-macros-kde5
@@ -111,6 +112,9 @@ exit 0
 %{_libdir}/qt5/mkspecs/modules/qt_CalendarSupport.pri
 
 %changelog
+* Tue Dec 14 2021 Automatic Build System <autodist@mambasoft.it> 21.12.0-1mamba
+- automatic version update by autodist
+
 * Tue Nov 09 2021 Automatic Build System <autodist@mambasoft.it> 21.08.3-1mamba
 - automatic version update by autodist