diff --git a/.travis.yml b/.travis.yml
index 532f0516..8b53bf22 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,7 @@ php:
   - 5.3.3
   - 5.3
   - 5.4
+  - 5.5
 
 script:
  - phpunit -c ./unitTests/