diff --git a/darwin/future/core/client.py b/darwin/future/core/client.py
index 89cc71115..f2c7e9874 100644
--- a/darwin/future/core/client.py
+++ b/darwin/future/core/client.py
@@ -137,7 +137,7 @@ class ClientCore:
 
     def __init__(
         self,
-        config: DarwinConfig = DarwinConfig.local(),
+        config: DarwinConfig,
         retries: Optional[Retry] = None,
     ) -> None:
         self.config = config
diff --git a/darwin/future/meta/objects/base.py b/darwin/future/meta/objects/base.py
index 59c7ef01c..77eafcd7e 100644
--- a/darwin/future/meta/objects/base.py
+++ b/darwin/future/meta/objects/base.py
@@ -39,7 +39,7 @@ class Team(MetaBase[TeamCore]):
     def __init__(
         self,
         element: R,
-        client: ClientCore = ClientCore(),
+        client: ClientCore,
         meta_params: Optional[Param] = None,
     ) -> None:
         self.client = client
diff --git a/darwin/future/tests/meta/objects/test_v7_id.py b/darwin/future/tests/meta/objects/test_v7_id.py
index f6c4484e9..62171cc2d 100644
--- a/darwin/future/tests/meta/objects/test_v7_id.py
+++ b/darwin/future/tests/meta/objects/test_v7_id.py
@@ -1,13 +1,14 @@
 from uuid import UUID
 
-
+from darwin.future.meta.client import Client
 from darwin.future.meta.objects.v7_id import V7ID
+from darwin.future.tests.meta.fixtures import *
 
 
-def test_v7_id() -> None:
+def test_v7_id(base_meta_client: Client) -> None:
     # Test creating a V7ID object
     uuid = UUID("123e4567-e89b-12d3-a456-426655440000")
-    v7_id = V7ID(uuid)
+    v7_id = V7ID(uuid, base_meta_client)
     assert v7_id.id == uuid
 
     # Test __str__ method