diff --git a/.travis.yml b/.travis.yml
index a6b08726a5..c1e931d3ea 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,8 +16,11 @@ matrix:
     env: WP_TRAVISCI=travis:phpunit
   - php: hhvm
     env: WP_TRAVISCI=travis:phpunit
+  - php: nightly
+    env: WP_TRAVISCI=travis:phpunit
   allow_failures:
   - php: hhvm
+  - php: nightly
   fast_finish: true
 before_install:
 - WP_CORE_DIR=/tmp/wordpress/