with git command
- prerequisites
1git remote add upstream git@github.com:mmistakes/minimal-mistakes.git # in your github repository
2git fetch --all
- update files from mmistakes v.4.19.1 according to Github network alerts
1git checkout 4.19.1 -- minimal-mistakes-jekyll.gemspec package.json package-lock.json
2git commit -m "[update] from minimal mistakes 4.19.1 release"