diff --git a/knights.spec b/knights.spec
index 994a428..7c3c5be 100644
--- a/knights.spec
+++ b/knights.spec
@@ -1,5 +1,5 @@
 Name:          knights
-Version:       20.12.3
+Version:       21.04.0
 Release:       1mamba
 Summary:       A KDE chess frontend to server chess engines including GNUChess
 Group:         Graphical Desktop/Applications/Games
@@ -21,6 +21,7 @@ BuildRequires: libkconfigwidgets-devel
 BuildRequires: libkcoreaddons-devel
 BuildRequires: libkcrash-devel
 BuildRequires: libkdbusaddons-devel
+BuildRequires: libkdegames-devel
 BuildRequires: libki18n-devel
 BuildRequires: libkpackage-devel
 BuildRequires: libkplotting-devel
@@ -82,6 +83,9 @@ Knights aims to be the ultimate chess resource on your computer. Written for the
 %doc LICENSE
 
 %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