diff --git a/.travis.yml b/.travis.yml
index 5cdde3b..545660a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -38,6 +38,7 @@ before_install:
 - echo "deb http://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
 - sudo apt-get update -qq
 - sudo apt-get install -y -qq yarn
+- yarn
 script:
 - bundle exec nanoc --env=prod
 - bundle exec nanoc --env=prod check --deploy