diff --git a/.travis.yml b/.travis.yml
index a1f594f..169a412 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,7 @@ php:
   - '7.0'
   - '7.1'
   - '7.2'
+  - '7.3'
 before_script:
   - composer install
 script: