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: Ole Streicher <email@example.com>
Date: Mon Nov 18 13:10:20 2019 +0100
Use new name source-extractor
See https://bugs.debian.org/941466 for details