How does one downgrade jekyll to work with github pages?

Question

I think my main issue is that jekyll 4 is not support by github pages. That is fine with me, but how do I downgrade jekyll to work regardless?

I tried following the

Answer 1

Your Gemfile should look like :

source 'https://rubygems.org'

# will install all gh-pages allowed gems
# see : https://pages.github.com/versions/
gem 'github-pages'

# comment out all other gems
# gem 'jekyll'
# gem 'jekyll-feed'
# gem ...

Remove Gemfile.lock

You can now do a bundle and it will install all needed gems to test against actual github-pages version.