diff --git a/phpunit.xml b/phpunit.xml
index 08522be9..d66acd01 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -18,5 +18,6 @@
         <env name="APP_ENV" value="testing"/>
         <env name="CACHE_DRIVER" value="array"/>
         <env name="SESSION_DRIVER" value="array"/>
+        <env name="QUEUE_DRIVER" value="sync"/>
     </php>
 </phpunit>