diff --git a/.travis.yml b/.travis.yml
index 9c85375..33220a3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,9 +11,12 @@ env:
 
 matrix:
     include:
-        -
-            php: 5.6
-            env: COMPOSER_OPTIONS="--prefer-lowest"
+        - php: 5.6
+          env: COMPOSER_OPTIONS="--prefer-lowest"
+        - php: nightly
+    allow_failures:
+        - php: nightly
+    fast_finish: true
 
 cache:
     directories: