diff --git a/Gemfile b/Gemfile
index ed99566..fd95539 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,3 @@
 source 'https://rubygems.org'
 
-gem 'github-pages', '~> 209', group: :jekyll_plugins
+gem 'github-pages', '~> 231', group: :jekyll_plugins