diff --git a/analitza.spec b/analitza.spec
index c7fcb1e..8f4e07a 100644
--- a/analitza.spec
+++ b/analitza.spec
@@ -2,7 +2,7 @@
 %global __debug_package 1
 
 Name:          analitza
-Version:       20.12.2
+Version:       20.12.3
 Release:       1mamba
 Summary:       KDE library for mathematical features
 Group:         Graphical Desktop/Applications/Scientific
@@ -25,7 +25,6 @@ BuildRequires: libstdc++6-devel
 BuildRequires: extra-cmake-modules
 BuildRequires: kdelibs-devel >= 4.14.4
 #Requires:      kde-workspace
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 Algebraic calculator and libraries.
@@ -124,6 +123,9 @@ Debug information is useful when developing applications that use this package o
 %{_kde5_libdir}/cmake/Analitza5/Analitza5*.cmake
 
 %changelog
+* Thu Mar 04 2021 Automatic Build System <autodist@mambasoft.it> 20.12.3-1mamba
+- automatic version update by autodist
+
 * Thu Feb 04 2021 Automatic Build System <autodist@mambasoft.it> 20.12.2-1mamba
 - automatic version update by autodist