diff --git a/.travis.yml b/.travis.yml
index 189b0314..c14ea9f0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,10 +4,12 @@ php:
   - 5.4
   - 5.5
   - 5.6
+  - nightly
   - hhvm
  
 matrix:
     allow_failures:
+        - php: nightly
         - php: hhvm
 
 before_install: