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: Christoph Berg <firstname.lastname@example.org>
Date: Thu Nov 1 14:59:59 2018 +0100
Use postgresql-11 instead of postgresql-10. (Closes: #911025)
The package was already failing 7 unit tests with PG10, now it's still 6.