diff --git a/kruler.spec b/kruler.spec
index 78f0062..04a9753 100644
--- a/kruler.spec
+++ b/kruler.spec
@@ -1,5 +1,5 @@
 Name:          kruler
-Version:       20.12.3
+Version:       21.04.0
 Release:       1mamba
 Summary:       A ruler in inch, centimeter and pixel to check distances on the screen
 Group:         Graphical Desktop/Applications/Graphics
@@ -12,16 +12,19 @@ License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
 BuildRequires: libgcc
-BuildRequires: libICE-devel
+BuildRequires: libkauth-devel
+BuildRequires: libkcodecs-devel
+BuildRequires: libkconfig-devel
+BuildRequires: libkconfigwidgets-devel
+BuildRequires: libkcoreaddons-devel
+BuildRequires: libki18n-devel
+BuildRequires: libknotifications-devel
+BuildRequires: libkwidgetsaddons-devel
+BuildRequires: libkwindowsystem-devel
+BuildRequires: libkxmlgui-devel
 BuildRequires: libqt5-devel
-BuildRequires: libSM-devel
 BuildRequires: libstdc++6-devel
-BuildRequires: libX11-devel
-BuildRequires: libXau-devel
-BuildRequires: libXdmcp-devel
-BuildRequires: libXext-devel
-BuildRequires: libXft-devel
-BuildRequires: libXpm-devel
+BuildRequires: libxcb-devel
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
 #Requires:      kde-workspace
@@ -77,6 +80,9 @@ exit 0
 #TODO
 
 %changelog
+* Thu Apr 22 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