diff --git a/knavalbattle.spec b/knavalbattle.spec
index 0686c7d..c292826 100644
--- a/knavalbattle.spec
+++ b/knavalbattle.spec
@@ -1,5 +1,5 @@
 Name:          knavalbattle
-Version:       20.12.2
+Version:       20.12.3
 Release:       1mamba
 Summary:       Naval Battle
 Group:         Graphical Desktop/Applications/Games
@@ -32,7 +32,6 @@ BuildRequires: libstdc++6-devel
 BuildRequires: cmake
 Provides:      kbattleship
 Obsoletes:     kbattleship
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 Naval Battle.
@@ -71,6 +70,9 @@ Naval Battle.
 %doc AUTHORS 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