diff --git a/phpunit.xml b/phpunit.xml
index b72c6e5f1..6ce994bf6 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -21,6 +21,7 @@
     <server name="DB_CONNECTION" value="mysql_testing"/>
     <server name="BCRYPT_ROUNDS" value="4"/>
     <server name="MAIL_DRIVER" value="array"/>
+    <server name="MAIL_PORT" value="587"/>
     <server name="MAIL_VERIFY_SSL" value="true"/>
     <server name="LOG_CHANNEL" value="single"/>
     <server name="AUTH_METHOD" value="standard"/>