diff --git a/Gemfile b/Gemfile
index 66c15a7..0862f48 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,7 @@
 source 'https://rubygems.org'
 
-# GitHub Pages compatible gems
-gem 'github-pages', group: :jekyll_plugins
+# GitHub Pages compatible gems - pin to version compatible with Ruby 3.1.7
+gem 'github-pages', '~> 232', group: :jekyll_plugins
 gem 'jekyll-feed', '~> 0.12'
 gem 'jekyll-sitemap'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 024cab0..136936c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -275,7 +275,7 @@ PLATFORMS
 
 DEPENDENCIES
   activesupport (< 8.0)
-  github-pages
+  github-pages (~> 232)
   http_parser.rb (~> 0.6.0)
   jekyll-feed (~> 0.12)
   jekyll-sitemap