diff --git a/kblocks.spec b/kblocks.spec
index 491fc6c..2b3879f 100644
--- a/kblocks.spec
+++ b/kblocks.spec
@@ -1,5 +1,5 @@
 Name:          kblocks
-Version:       20.12.2
+Version:       20.12.3
 Release:       1mamba
 Summary:       KBlocks, Egyptian style
 Group:         Graphical Desktop/Applications/Games
@@ -18,7 +18,6 @@ BuildRequires: libstdc++6-devel
 BuildRequires: libknotifyconfig-devel
 BuildRequires: automoc4
 BuildRequires: cmake
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 KBlocks, Egyptian style.
@@ -75,6 +74,9 @@ exit 0
 %{_kde5_icondir}/hicolor/*/apps/kblocks.png
 
 %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