diff --git a/.travis.yml b/.travis.yml
index c507441..cf5c772 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,8 +5,8 @@ php:
   - 5.4
 
 before_script:
-    - curl -s http://getcomposer.org/installer | php
-    - php composer.phar install --dev
+    - composer self-update
+    - composer install --dev --prefer-source
 
 script: phpunit --coverage-clover clover