diff --git a/airbyte-integrations/connectors/source-marketo/source_marketo/source.py b/airbyte-integrations/connectors/source-marketo/source_marketo/source.py
index aef902242d439a..2c4c0d046c5a3f 100644
--- a/airbyte-integrations/connectors/source-marketo/source_marketo/source.py
+++ b/airbyte-integrations/connectors/source-marketo/source_marketo/source.py
@@ -533,7 +533,7 @@ def check_connection(self, logger, config) -> Tuple[bool, any]:
         """
 
         try:
-            url = f"{config['domain_url']}/rest/v1/leads/describe"
+            url = f"{config['domain_url']}/api/v2/users"
 
             authenticator = MarketoAuthenticator(config)