The package has a debian/watch file, but the last attempt
to use it for checking for newer upstream versions failed with
an error:
In debian/watch no matching files for watch line https://www.gnu.org/software/cpio/ (?:.*/|.*=|)cpio[\-\._]?(\d\S*)\.(?:tar\.xz|txz|tar\.bz2|tbz2|tar\.gz|tgz)(?:/\S*)?