diff --git a/api/group.py b/api/group.py
index d095dfd9..f32e5691 100644
--- a/api/group.py
+++ b/api/group.py
@@ -21,6 +21,7 @@
 from core.dependencies import (
     session_dependency,
     admin_dependency,
+    amp_admin_dependency,
     editor_dependency,
     viewer_dependency,
 )
@@ -60,7 +61,7 @@ def add_thing_to_group_route(
     group_id: int,
     thing_id: int,
     session: session_dependency,
-    user: admin_dependency,
+    user: amp_admin_dependency,
 ):
     """
     Associate a thing (e.g. a water well) with a group (project).
@@ -118,7 +119,7 @@ def remove_thing_from_group_route(
     group_id: int,
     thing_id: int,
     session: session_dependency,
-    user: admin_dependency,
+    user: amp_admin_dependency,
 ):
     """
     Remove the association between a thing and a group.
diff --git a/tests/test_group.py b/tests/test_group.py
index 8ab05879..fc252f28 100644
--- a/tests/test_group.py
+++ b/tests/test_group.py
@@ -4,7 +4,12 @@
 from geoalchemy2.shape import to_shape
 from pydantic import ValidationError
 
-from core.dependencies import admin_function, viewer_function, editor_function
+from core.dependencies import (
+    admin_function,
+    amp_admin_function,
+    viewer_function,
+    editor_function,
+)
 from db import Group, GroupThingAssociation, Thing
 from db.engine import session_ctx
 from main import app
@@ -24,6 +29,9 @@ def override_authentication_dependency_fixture():
     app.dependency_overrides[admin_function] = override_authentication(
         default={"name": "foobar", "sub": "1234567890"}
     )
+    app.dependency_overrides[amp_admin_function] = override_authentication(
+        default={"name": "foobar", "sub": "1234567890"}
+    )
     app.dependency_overrides[editor_function] = override_authentication(
         default={"name": "foobar", "sub": "1234567890"}
     )
diff --git a/tests/test_lazy_admin.py b/tests/test_lazy_admin.py
index 5b70ed88..ac2f2244 100644
--- a/tests/test_lazy_admin.py
+++ b/tests/test_lazy_admin.py
@@ -1,14 +1,29 @@
 import os
+from collections.abc import Iterable
 
 from core.factory import create_api_app
 from fastapi.testclient import TestClient
 
 
+def _iter_route_paths(routes: Iterable) -> Iterable[str]:
+    for route in routes:
+        path = getattr(route, "path", None)
+        if path:
+            yield path
+        nested = getattr(route, "routes", None)
+        if nested:
+            yield from _iter_route_paths(nested)
+
+
+def _has_admin_route(routes: Iterable) -> bool:
+    return any(path.startswith("/admin") for path in _iter_route_paths(routes))
+
+
 def test_admin_is_lazy_loaded_on_first_admin_request():
     os.environ["SESSION_SECRET_KEY"] = "test-session-secret-key"
     app = create_api_app()
 
-    assert not any(route.path.startswith("/admin") for route in app.routes)
+    assert not _has_admin_route(app.routes)
     assert getattr(app.state, "admin_configured", False) is False
 
     with TestClient(app) as client:
@@ -16,4 +31,4 @@ def test_admin_is_lazy_loaded_on_first_admin_request():
 
     assert response.status_code in {200, 302, 307}
     assert app.state.admin_configured is True
-    assert any(route.path.startswith("/admin") for route in app.routes)
+    assert _has_admin_route(app.routes)