this package seems to have new commits in its VCS but has
not yet updated debian/changelog. You should consider updating
the Debian changelog and uploading this new version into the archive.
Here are the relevant commit logs:
Author: Laurent Bigonville <firstname.lastname@example.org>
Date: Thu Sep 2 09:14:04 2021 +0200
Reenable the backend on m68k, webkit builds again on that architecture