diff --git a/.travis.yml b/.travis.yml
index 3320963..3259ca8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,12 +6,14 @@ php:
   - 5.5
   - 5.4
   - 5.3
+  - nightly
   - hhvm
   - hhvm-nightly
 
 matrix:
   fast_finish: true
   allow_failures:
+    - php: nightly
     - php: hhvm-nightly
 
 install: