diff --git a/.travis.yml b/.travis.yml
index c835ab7..a0a83be 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -26,6 +26,8 @@ php:
 
 matrix:
   fast_finish: true
+  allow_failures:
+    - php: nightly
 
 before_install:
   - echo "extension=memcached.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini