diff --git a/_site/Gemfile b/_site/Gemfile
index 0c8671c..da83797 100644
--- a/_site/Gemfile
+++ b/_site/Gemfile
@@ -1,3 +1,3 @@
 source "https://rubygems.org"
 
-gem "github-pages", group: :jekyll_plugins
+gem "github-pages", ">= 214", group: :jekyll_plugins