diff --git a/Gemfile b/Gemfile
index 7d80add24..718eb7ca6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -18,3 +18,5 @@ gem "minima", "~> 2.0"
 gem "github-pages", group: :jekyll_plugins
 
 gem "webrick", "~> 1.8"
+
+gem 'nokogiri', '~> 1.10'