diff --git a/rocs.spec b/rocs.spec
index 21b9ad8..9eff96f 100644
--- a/rocs.spec
+++ b/rocs.spec
@@ -1,5 +1,5 @@
 Name:          rocs
-Version:       20.12.2
+Version:       20.12.3
 Release:       1mamba
 Summary:       Graph Theory Tool for Professors and Students
 Group:         Graphical Desktop/Applications/Educational
@@ -18,7 +18,6 @@ BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
 #Requires:      kde-workspace
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 Rocs aims to be a Graph Theory IDE for helping professors to show the results of a graph algorithm and also helping students to do the algorithms.
@@ -123,6 +122,9 @@ exit 0
 %{_libdir}/librocsgraphtheory.so
 
 %changelog
+* Sat Mar 06 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