diff --git a/.travis.yml b/.travis.yml
index bad53d76b7..065a71677f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -122,6 +122,6 @@ install:
     - ./phpunit install
 
 script:
-    - echo "$COMPONENTS" | parallel --gnu "tfold {} ./phpunit --exclude-group tty,benchmark,intl-data {}"
+    - echo "$COMPONENTS" | parallel --gnu -j +3 "tfold {} ./phpunit --exclude-group tty,benchmark,intl-data {}"
     - tfold src/Symfony/Component/Console.tty ./phpunit src/Symfony/Component/Console --group tty
     - tfold src/Symfony/Bridge/Twig.tty ./phpunit src/Symfony/Bridge/Twig --group tty