diff --git a/spec/test_app/Gemfile b/spec/test_app/Gemfile
index 0cca88a..5d0a3a8 100644
--- a/spec/test_app/Gemfile
+++ b/spec/test_app/Gemfile
@@ -1,2 +1,5 @@
 source 'https://rubygems.org'
+
+gem 'selenium-webdriver'
+
 gemspec :path => '../../'