diff --git a/Gemfile b/Gemfile
index 27e6eb5a..263b959c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,7 +5,7 @@ source 'https://rubygems.org'
 git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 
 # Synchronize with https://pages.github.com/versions
-ruby '3.0.4'
+ruby '3.1.6'
 
 gem 'github-pages', group: :jekyll_plugins