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: Jeremy Bicha <email@example.com>
Date: Sun Dec 2 09:11:24 2018 -0500
debian/rules: Stop including gnome-get-source.mk, use uscan instead