diff --git a/.travis.yml b/.travis.yml
index 677975ce63..73b9b7e714 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,9 +18,12 @@ matrix:
     env: WP_TRAVISCI=travis:phpunit
   - php: 7.0
     env: WP_TRAVISCI=travis:phpunit
+  - php: nightly
+    env: WP_TRAVISCI=travis:phpunit
   allow_failures:
   - php: hhvm
   - php: 7.0
+  - php: nightly
   fast_finish: true
 before_install:
 - WP_CORE_DIR=/tmp/wordpress/