diff --git a/.travis.yml b/.travis.yml
index 3898836..78c6b77 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,11 +1,13 @@
 language: php
 php:
-  - "7.0"
-  - "5.6"
-  - "5.5"
-  - "5.4"
-  - "5.3"
-  - "5.2"
+  - hhvm
+  - nightly
+  - 7.0
+  - 5.6
+  - 5.5
+  - 5.4
+  - 5.3
+  - 5.2
 
 before_script:
   - chmod 777 Tests/tmp