diff --git a/changedetectionio/tests/smtp/test_notification_smtp.py b/changedetectionio/tests/smtp/test_notification_smtp.py
index 91d13726f..6f897e177 100644
--- a/changedetectionio/tests/smtp/test_notification_smtp.py
+++ b/changedetectionio/tests/smtp/test_notification_smtp.py
@@ -15,7 +15,7 @@ import logging
 import base64
 
 # NOTE - RELIES ON mailserver as hostname running, see github build recipes
-smtp_test_server = 'localhost'
+smtp_test_server = 'mailserver'
 
 from changedetectionio.notification import (
     default_notification_body,