diff --git a/.travis.yml b/.travis.yml
index 6c3df2f..57f6613 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,16 +1,24 @@
 language: php
 php:
-- '7.2'
 - '7.3'
 - '7.4'
+- nightly
+
+matrix:
+  allow_failures:
+    - php: nightly
+
 before_install:
   - nvm install 12
+
 before_script:
 - composer install
 - npm install
+
 script:
 - composer test
 - composer lint-all
+
 notifications:
   slack:
     secure: "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"