diff --git a/tests/rabbitmq/test_user_management_service_client.py b/tests/rabbitmq/test_user_management_service_client.py
index 21c6b59..b0b67ce 100644
--- a/tests/rabbitmq/test_user_management_service_client.py
+++ b/tests/rabbitmq/test_user_management_service_client.py
@@ -40,8 +40,8 @@ class TestUserManagementServiceClient(unittest.IsolatedAsyncioTestCase):
             mock_connection = MagicMock()
             mock_connect.return_value = mock_connection
             
-            # Mock channel
-            mock_channel = MagicMock()
+            # Mock channel - use AsyncMock for async methods
+            mock_channel = AsyncMock()
             mock_connection.channel.return_value = mock_channel
             mock_channel.set_qos = AsyncMock()