diff --git a/re2.spec b/re2.spec
index b5852d5..ea19c13 100644
--- a/re2.spec
+++ b/re2.spec
@@ -1,6 +1,6 @@
-%define gitver %(echo %version | tr _ -)
+%define gitver %(echo %version | tr . -)
 Name:          re2
-Version:       2020_03_03
+Version:       2023.03.01
 Release:       1mamba
 Summary:       A fast, safe, thread-friendly regular expression library
 Group:         System/Libraries
@@ -8,7 +8,6 @@ Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           https://github.com/google/re2
-## GITSOURCE https://github.com/google/re2.git 2016-11-01
 Source:        https://github.com/google/re2.git/%{gitver}/re2-%{version}.tar.bz2
 License:       BSD
 ## AUTOBUILDREQ-BEGIN
@@ -18,7 +17,6 @@ BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
 Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 RE2 is a fast, safe, thread-friendly alternative to backtracking regular expression engines like those used in PCRE, Perl, and Python. It is a C++ library.
@@ -79,6 +77,9 @@ This package contains libraries and header files for developing applications tha
 
 
 %changelog
+* Thu Mar 09 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 2023.03.01-1mamba
+- update to 2023.03.01
+
 * Sun Mar 29 2020 Ercole 'ercolinux' Carpanetto <ercole69@gmail.com> 2020_03_03-1mamba
 - update to 2020_03_03