diff --git a/tests/orchestrator/activities/test_activities.py b/tests/orchestrator/activities/test_activities.py
index 7106085..7c0fbb3 100644
--- a/tests/orchestrator/activities/test_activities.py
+++ b/tests/orchestrator/activities/test_activities.py
@@ -98,7 +98,7 @@ def test___init__(mock_formatters_init, mock_slot_manager_init,
 
 
 @mark.asyncio
-@patch('orchestrator.activities.couchbase.Cluster')
+@patch('orchestrator.activities.mongo_db.MongoClient')
 async def test_prepare_activity(_mock_cluster):
     couchbase_config = {
         'connection_string': 'couchbase://localhost',