diff --git a/kiten.spec b/kiten.spec
index 8c2dc12..6be97f3 100644
--- a/kiten.spec
+++ b/kiten.spec
@@ -1,5 +1,5 @@
 Name:          kiten
-Version:       20.12.3
+Version:       21.04.0
 Release:       1mamba
 Summary:       Japanese Reference/Study Tool
 Group:         Graphical Desktop/Applications/Educational
@@ -20,23 +20,18 @@ BuildRequires: libkconfig-devel
 BuildRequires: libkconfigwidgets-devel
 BuildRequires: libkcoreaddons-devel
 BuildRequires: libkcrash-devel
-BuildRequires: libkhtml-devel
 BuildRequires: libki18n-devel
 BuildRequires: libkio-devel
-BuildRequires: libkjobwidgets-devel
-BuildRequires: libkjs-devel
-BuildRequires: libkparts-devel
+BuildRequires: libknotifications-devel
 BuildRequires: libkservice-devel
-BuildRequires: libktextwidgets-devel
 BuildRequires: libkwidgetsaddons-devel
 BuildRequires: libkxmlgui-devel
 BuildRequires: libqt5-devel
-BuildRequires: libsonnet-devel
 BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
 Provides:      kiten4 = %{?epoch:%epoch:}%{version}-%{release}
-Obsoletes:     kiten4
+Obsoletes:     kiten4 < 21.04.0
 
 %description
 Kiten is a Japanese reference/study tool.
@@ -52,6 +47,8 @@ Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
 %description devel
 %{sumamry}.
 
+%debug_package
+
 %prep
 %setup -q
 
@@ -107,7 +104,7 @@ exit 0
 %{_datadir}/kxmlgui5/kitenradselect/radselectui.rc
 %{_kde5_icondir}/hicolor/*/apps/%{name}.png
 %{_kde5_icondir}/hicolor/scalable/apps/%{name}.svgz
-%doc AUTHORS COPYING COPYING.DOC COPYING.LIB
+%doc AUTHORS COPYING.DOC LICENSES
 
 %files devel
 %defattr(-,root,root)
@@ -120,6 +117,9 @@ exit 0
 %doc README TODO
 
 %changelog
+* Sat Apr 24 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