diff --git a/kalzium.spec b/kalzium.spec
index f021df7..f31faa0 100644
--- a/kalzium.spec
+++ b/kalzium.spec
@@ -1,5 +1,5 @@
 Name:          kalzium
-Version:       20.08.3
+Version:       20.12.0
 Release:       1mamba
 Summary:       Periodic table of elements
 Group:         Graphical Desktop/Applications/Educational
@@ -108,7 +108,6 @@ exit 0
 %defattr(-,root,root)
 %{_kde5_bindir}/%{name}
 %{_kde5_kcfgdir}/kalzium.kcfg
-%config %{_kde5_configdir}/%{name}.knsrc
 %{_kde5_datadir}/%{name}
 %{_kde5_datadir}/libkdeedu/data/*
 %{_datadir}/icons/hicolor/*/apps/kalzium.png
@@ -131,6 +130,9 @@ exit 0
 %{_kde5_libdir}/libscience.so
 
 %changelog
+* Sun Dec 20 2020 Automatic Build System <autodist@mambasoft.it> 20.12.0-1mamba
+- automatic version update by autodist
+
 * Sat Nov 07 2020 Automatic Build System <autodist@mambasoft.it> 20.08.3-1mamba
 - automatic version update by autodist