diff --git a/.travis.yml b/.travis.yml
index e8687e8..0feafd5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,7 @@ php:
  - 5.4
 
 before_script:
+  - composer install --dev --prefer-dist
   - php vendor/bin/codecept build
 
 script: