diff --git a/Gemfile b/Gemfile
index 73ed40b..ba353ec 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 gem "minimal-mistakes-jekyll"
 
-gem "github-pages", group: :jekyll_plugins
+gem "github-pages", "~> 231", group: :jekyll_plugins
 gem "jekyll-include-cache", group: :jekyll_plugins
 gem 'jekyll-scholar', group: :jekyll_plugins