diff --git a/Gemfile b/Gemfile
index 3be9c3cd81..3dc8ddf568 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,2 +1,9 @@
 source "https://rubygems.org"
 gemspec
+
+# To run it in github-pages and replicate that locally
+gem 'github-pages', group: :jekyll_plugins
+
+# Should be included in Jekyll but depending on the version Jekyll and Ruby version, it may not be included
+gem 'webrick'
+# gem 'kramdown-parser-gfm' # already included in github-pages