diff --git a/isomd5sum.spec b/isomd5sum.spec
index f8fb676..9a950b9 100644
--- a/isomd5sum.spec
+++ b/isomd5sum.spec
@@ -1,12 +1,12 @@
 Name:          isomd5sum
 Version:       1.2.3
-Release:       1mamba
+Release:       2mamba
 Summary:       ISO9660 checksum utilities
 Group:         System/Tools
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://www.finnie.org/software/isomd5sum
+URL:           https://www.finnie.org/software/isomd5sum
 Source:		   https://github.com/rhinstaller/isomd5sum/archive/%{version}.tar.gz
 #Source:        https://git.fedorahosted.org/cgit/isomd5sum.git/%{version}/isomd5sum-%{version}.tar.bz2
 #Source:        https://fedorahosted.org/releases/i/s/isomd5sum/isomd5sum-%{version}.tar.bz2
@@ -14,9 +14,8 @@ License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
 BuildRequires: libpopt-devel
-BuildRequires: libpython3-devel
+BuildRequires: libpython311-devel
 ## AUTOBUILDREQ-END
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 isomd5sum is a collection of utilities for implanting and checking MD5 checksums within an ISO9660 image. A checksum is implanted in an image using the implantisomd5 utility, and the corresponding checkisomd5 utility can be used to verify burned CDs are error-free. Also included is a Python extension for performing these tasks.
@@ -67,6 +66,9 @@ mv %{buildroot}%{_libdir}/python* %{buildroot}%{_prefix}/lib/
 %{_datadir}/pkgconfig/isomd5sum.pc
 
 %changelog
+* Wed Oct 25 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 1.2.3-2mamba
+- rebuilt with python3 == 3.11
+
 * Wed May 23 2018 Automatic Build System <autodist@mambasoft.it> 1.2.3-1mamba
 - automatic version update by autodist