MarsSeed [1] filed a deletion request for python-treecorr-git [2]: Wrong VCS package, abandoned since years. It was badly configured so it hasn't built the latest version of the code but the latest stable branch. Former maintainer is MIA since 2020 at least when it comes to updating their packages. Better to delete this defunct package There is a maintained and up-to-date AUR/python-treecorr package. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python-treecorr-git/