diff --git a/.github/workflows/website.yml b/.github/workflows/website.yml
index 72e3d14..fdb7b69 100644
--- a/.github/workflows/website.yml
+++ b/.github/workflows/website.yml
@@ -19,7 +19,7 @@ jobs:
       - name: Set up Ruby
         uses: actions/setup-ruby@v1
         with:
-          ruby-version: '2.7'
+          ruby-version: '3.0'
 
       - name: Set up Python
         uses: actions/setup-python@v2
diff --git a/Gemfile b/Gemfile
index fb25ae4..f3eeded 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,6 +5,6 @@ source 'https://rubygems.org'
 git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
 
 # Synchronize with https://pages.github.com/versions
-ruby '>=2.5.8'
+ruby '>=2.7.4'
 
 gem 'github-pages', group: :jekyll_plugins