The package has a debian/watch file, but the last attempt
to use it for checking for newer upstream versions failed with
an error:
Tag pattern missing version delimiters () in debian/watch, skipping: https://savannah.nongnu.org/download/uisp/ uisp-(?:.*)(?i)(?:\.(?:tar\.xz|tar\.bz2|tar\.gz|tar\.zstd?|zip|tgz|tbz|txz)) debian uupdate