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: David Bremner <firstname.lastname@example.org>
Date: Wed Mar 6 09:18:32 2019 -0400
travis: switch to xenial build env
In principle we'd like everything to work with ancient versions. In
practice someone needs drive that effort.