diff --git a/tests/conftest.py b/tests/conftest.py
index 1376bd60d5..4cf673508e 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -32,7 +32,7 @@ def mkdir(tmp_path, *parts):
 labextensions_dir = pytest.fixture(lambda tmp_path: mkdir(tmp_path, "labextensions_dir"))
 
 
-@pytest.fixture()
+@pytest.fixture
 def make_notebook_app(  # PLR0913
     jp_root_dir,
     jp_template_dir,
@@ -131,7 +131,7 @@ def _make_notebook_app(**kwargs):
     return _make_notebook_app
 
 
-@pytest.fixture()
+@pytest.fixture
 def notebookapp(jp_serverapp, make_notebook_app):
     app = make_notebook_app()
     app._link_jupyter_server_extension(jp_serverapp)
diff --git a/tests/test_app.py b/tests/test_app.py
index 93a9a77e68..7b8816c45c 100644
--- a/tests/test_app.py
+++ b/tests/test_app.py
@@ -6,7 +6,7 @@
 from notebook.app import JupyterNotebookApp, NotebookHandler, TreeHandler
 
 
-@pytest.fixture()
+@pytest.fixture
 def notebooks(jp_create_notebook, notebookapp):
     nbpaths = (
         "notebook1.ipynb",