diff --git a/.travis.yml b/.travis.yml
index debd056..793b424 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,11 @@
 language: php
 php:
-  - "5.4"
-  - "5.3"
+  - 5.3
+  - 5.4
+  - 5.5
+  - 5.6
+  - 7.0
+  - hhvm
+  - nightly
 before_script:
   - composer install --prefer-source --dev