diff --git a/.travis.yml b/.travis.yml
index 1b3dc65ab..dbfb33e76 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,7 @@ php:
   - 7.0
   - 7.1
   - 7.2
+  - 7.3
   - hhvm
 
 install: travis_retry composer install --no-interaction --prefer-source