diff --git a/perl-Alien-m4.spec b/perl-Alien-m4.spec
index 75a0a13..6b4d382 100644
--- a/perl-Alien-m4.spec
+++ b/perl-Alien-m4.spec
@@ -1,15 +1,15 @@
 %define perl_major_ver %(eval `perl -V:version`; echo ${version%*.[0-9]*}.0)
 
 Name:          perl-Alien-m4
-Version:       0.19
+Version:       0.20
 Release:       1mamba
 Summary:       Alien::m4 - Find or build GNU m4
 Group:         System/Libraries/Perl
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://www.cpan.org
-Source:        https://cpan.metacpan.org/authors/id/P/PL/PLICEASE/Alien-m4-%{version}.tar.gz
+URL:           https://www.cpan.org/
+Source:        https://cpan.metacpan.org/modules/by-module/Alien/Alien-m4-%{version}.tar.gz
 License:       GPL, Artistic
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: perl-Alien-Build
@@ -17,7 +17,6 @@ BuildRequires: perl-devel
 ## AUTOBUILDREQ-END
 BuildRequires: perl-devel
 Requires:      perl >= %perl_major_ver
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 Alien::m4 - Find or build GNU m4.
@@ -53,5 +52,8 @@ done
 %doc LICENSE
 
 %changelog
+* Sat May 29 2021 Automatic Build System <autodist@mambasoft.it> 0.20-1mamba
+- automatic version update by autodist
+
 * Tue Dec 08 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 0.19-1mamba
 - package created using the webbuild interface