diff --git a/.travis.yml b/.travis.yml
index 7227280..da2d5bd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,7 @@ language: php
 php:
 - 7.1
 - 7.2
+- 7.3
 
 install:
 - travis_retry composer install --no-interaction --prefer-source