diff --git a/.travis.yml b/.travis.yml
index 7212567d..d8de5166 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: php
 
-php: [5.6, 5.5, 5.4, hhvm]
+php: [nightly, 5.6, 5.5, 5.4, 5.3, hhvm]
 
 install:
   - composer install --dev --prefer-source