diff --git a/.travis.yml b/.travis.yml
index 6e7e97b..f090207 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,7 @@ php:
 env:
     - SYMFONY_VERSION=3.4.*
     - SYMFONY_VERSION=4.2.*
+    - SYMFONY_VERSION=4.3.*
 
 cache:
     directories: