diff --git a/.travis.yml b/.travis.yml
index 0358ab92e..1ab1200e0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,6 +14,7 @@ before_script:
 - sudo apt-get install ruby-dev
 - gem install jekyll
 - gem install jekyll-paginate
+- gem install addressable -v 2.5.2
 - gem install jekyll-gist
 - gem install pygments.rb
 - gem install redcarpet