diff --git a/phpunit.xml b/phpunit.xml
index 61c031c..fee14c9 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -29,5 +29,6 @@
         <env name="QUEUE_CONNECTION" value="sync"/>
         <env name="SESSION_DRIVER" value="array"/>
         <env name="TELESCOPE_ENABLED" value="false"/>
+        <env name="SCOUT_DRIVER" value="null"/>
     </php>
 </phpunit>