diff --git a/.travis.yml b/.travis.yml
index d17d114..0202e27 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,7 @@ php:
     - 5.5
     - 5.6
     - 7.0
+    - nightly
     - hhvm
 
 cache:
@@ -24,6 +25,7 @@ matrix:
 
     allow_failures:
         - php: hhvm
+        - php: nightly
         - env: SYMFONY_VERSION="dev-master"
 
 before_install: