diff --git a/katomic.spec b/katomic.spec
index 59eb2b8..7193e0c 100644
--- a/katomic.spec
+++ b/katomic.spec
@@ -1,5 +1,5 @@
 Name:          katomic
-Version:       20.12.2
+Version:       20.12.3
 Release:       1mamba
 Summary:       Sokoban-like Logic Game
 Group:         Graphical Desktop/Applications/Games
@@ -18,7 +18,6 @@ BuildRequires: perl-devel
 ## AUTOBUILDREQ-END
 BuildRequires: libknotifyconfig-devel
 BuildRequires: cmake
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 Sokoban-like Logic Game.
@@ -57,6 +56,9 @@ Sokoban-like Logic Game.
 %doc COPYING COPYING.DOC
 
 %changelog
+* Fri Mar 05 2021 Automatic Build System <autodist@mambasoft.it> 20.12.3-1mamba
+- automatic version update by autodist
+
 * Fri Feb 05 2021 Automatic Build System <autodist@mambasoft.it> 20.12.2-1mamba
 - automatic version update by autodist