diff --git a/tests/conftest.py b/tests/conftest.py
index 999ef437..17f33859 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -363,7 +363,7 @@ def user_manager(mock_user_db, validate_password):
 @pytest.fixture
 def get_user_manager(get_mock_user_db, validate_password):
     def _get_user_manager(user_db=Depends(get_mock_user_db)):
-        yield UserManager(UserDB, user_db, validate_password)
+        return UserManager(UserDB, user_db, validate_password)
 
     return _get_user_manager
 
@@ -371,7 +371,7 @@ def get_user_manager(get_mock_user_db, validate_password):
 @pytest.fixture
 def get_user_manager_oauth(get_mock_user_db_oauth, validate_password):
     def _get_user_manager_oauth(user_db=Depends(get_mock_user_db_oauth)):
-        yield UserManager(UserDBOAuth, user_db, validate_password)
+        return UserManager(UserDBOAuth, user_db, validate_password)
 
     return _get_user_manager_oauth
 
diff --git a/tests/test_router_oauth.py b/tests/test_router_oauth.py
index b9582425..047c62e2 100644
--- a/tests/test_router_oauth.py
+++ b/tests/test_router_oauth.py
@@ -293,7 +293,6 @@ class TestCallback:
 
     async def test_inactive_user(
         self,
-        mock_user_db_oauth,
         test_app_client: httpx.AsyncClient,
         access_token,
         oauth_client,
@@ -325,7 +324,6 @@ class TestCallback:
 
     async def test_redirect_url_router(
         self,
-        mock_user_db_oauth,
         test_app_client_redirect_url: httpx.AsyncClient,
         access_token,
         oauth_client,