1 files changed, 1 insertions, 0 deletions

diff --git a/Gemfile b/Gemfile
index 47f12df..260a5b5 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,3 +2,4 @@ source 'https://rubygems.org'
 
 gem 'rdf'
 gem 'rdf-rdfxml'
+gem 'nokogiri'