Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: epubcheck 5.3.0 -> 5.4.0 https://github.com/w3c/epubcheck/releases
attrpath: epubcheck
Checking auto update branch...
An auto update branch exists with message `epubcheck: 5.3.0 -> 5.4.0`. New version is 5.4.0.
An auto update branch exists with an equal or greater version