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: Daniel Kahn Gillmor <firstname.lastname@example.org>
Date: Wed Aug 31 17:41:03 2016 -0400
ensure that hkpms still works for gnupg1 (it does not work for gnupg 2.1 etc)