@nedbat @hugovk You must also adjust the tox.ini. See e.g. https://github.com/veit/items/commit/ef7df7fd3b4e73f9e6e0d228e486588b017e1e4e

@veit In @nedbat's case, you need to bump the actions/setup-python@42375524e23c412d93fb67b49958b491fce71c38 pin (from 27 Jan) to 8d9ed9ac5c53483de85588cdf95a591a75ab9f55 (from yesterday) for latest v5 or v5.5.0

@nedbat @veit Yeah, I've been waiting a while to publish this, the new action was finally released today :)