diff --git a/.travis.yml b/.travis.yml
index 8e1afec..f795e8d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,6 @@ php:
   - "5.5"
 
 install:
-  - require mikey179/vfsStream:1.2.0
+  - composer require mikey179/vfsStream:1.2.0
 
 script: phpunit --bootstrap ./tests/bootstrap.php ./tests