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: Marcin Kulisz <email@example.com>
Date: Fri Sep 6 19:51:04 2019 +0100
Moving Canberra-gtk3 to recommends (Closes: #813456)