Latest Fedora delivers perl-Business-ISMN 1.11. Upstream released 1.13. Please upgrade. Also please enable monitoring service to receive reports about new releases.
Bumped in rawhide. At https://admin.fedoraproject.org/pkgdb/package/perl-Business-ISMN/, I changed Monitoring to "Bugs and Builds" and checked it is setup correctly in Anitya. Nor sure if there is anything else to be done.