diff --git a/.travis.yml b/.travis.yml
index 3f42a07..d4728e4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,11 @@ language: php
 php:
   - 5.3
   - 5.4
+  - 5.5
+
+matrix:
+  allow_failures:
+      - php: 5.5
 
 before_script:
  - composer selfupdate --quiet