diff --git a/phpunit.xml b/phpunit.xml
index 6ea5f8bc..90ce36b8 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="PENNANT_STORE" value="array"/>
 	</php>
 </phpunit>