diff --git a/Gemfile b/Gemfile
index 1629566..eed6be5 100644
--- a/Gemfile
+++ b/Gemfile
@@ -25,3 +25,5 @@ group :jekyll_plugins do
   gem 'jekyll-sitemap'
   gem 'hawkins'
 end
+
+gem "webrick", "~> 1.7"