diff --git a/.travis.yml b/.travis.yml
index dba3221..620eb40 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,7 +9,9 @@ matrix:
   allow_failures:
     - php: 5.5
 
-before_script: composer install --dev --prefer-source
+before_script:
+  - composer self-update
+  - composer install --dev --prefer-source
 
 notifications:
   email: francis.besset@gmail.com