diff --git a/kdegraphics-thumbnailers.spec b/kdegraphics-thumbnailers.spec
index 46d92ce..36b00d2 100644
--- a/kdegraphics-thumbnailers.spec
+++ b/kdegraphics-thumbnailers.spec
@@ -1,5 +1,5 @@
 Name:          kdegraphics-thumbnailers
-Version:       20.12.2
+Version:       20.12.3
 Release:       1mamba
 Summary:       Thumbnailers for various graphic types
 Group:         Graphical Desktop/Applications/Graphics
@@ -19,7 +19,6 @@ BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
 #Requires:      kde-workspace
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 %{summary}.
@@ -60,6 +59,9 @@ exit 0
 %doc COPYING COPYING.LIB
 
 %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