diff --git a/tests/conftest.py b/tests/conftest.py
index 8d1fcaf92..c5d5b5ad1 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -14,28 +14,28 @@
 sys.path.insert(1, str(package_dir))
 
 
-@pytest.fixture()
+@pytest.fixture
 def test_data_path() -> Path:
     p = _this_dir / "test_data"
     assert p.is_dir()
     return p
 
 
-@pytest.fixture()
+@pytest.fixture
 def test_trajectories_path(test_data_path) -> Path:
     p = test_data_path / "trajectories"
     assert p.is_dir()
     return p
 
 
-@pytest.fixture()
+@pytest.fixture
 def test_data_sources_path(test_data_path) -> Path:
     p = test_data_path / "data_sources"
     assert p.is_dir()
     return p
 
 
-@pytest.fixture()
+@pytest.fixture
 def test_trajectory_path(test_trajectories_path) -> Path:
     traj = (
         test_trajectories_path
@@ -46,6 +46,6 @@ def test_trajectory_path(test_trajectories_path) -> Path:
     return traj
 
 
-@pytest.fixture()
+@pytest.fixture
 def test_trajectory(test_trajectory_path):
     return json.loads(test_trajectory_path.read_text())
diff --git a/tests/test_env.py b/tests/test_env.py
index 58f9169e5..a543e3d43 100644
--- a/tests/test_env.py
+++ b/tests/test_env.py
@@ -58,27 +58,27 @@ def swe_env_context(env_args):
         env.close()
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_init_swe_env(test_env_args):
     with swe_env_context(test_env_args) as env:
         env.reset()
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_init_swe_env_conservative_clone(test_env_args):
     with mock.patch.dict("os.environ", {"SWE_AGENT_CLONE_METHOD": "full"}):
         with swe_env_context(test_env_args) as env:
             env.reset()
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_init_swe_env_non_persistent(test_env_args):
     test_env_args = dataclasses.replace(test_env_args, container_name=None)
     with swe_env_context(test_env_args) as env:
         env.reset()
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_init_swe_env_cached_task_image(test_env_args):
     test_env_args = dataclasses.replace(test_env_args, cache_task_images=True, container_name=None)
     start = time.perf_counter()
@@ -105,7 +105,7 @@ def test_init_swe_env_cached_task_image(test_env_args):
         client.images.remove(image.id)
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_execute_setup_script(tmp_path, test_env_args):
     test_script = "echo 'hello world'"
     script_path = Path(tmp_path / "test_script.sh")
@@ -115,7 +115,7 @@ def test_execute_setup_script(tmp_path, test_env_args):
         env.reset()
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_execute_environment(tmp_path, test_env_args, capsys):
     test_env = {
         "python": "3.6",
@@ -134,7 +134,7 @@ def test_execute_environment(tmp_path, test_env_args, capsys):
     assert "Cloned python conda environment" not in out
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_execute_environment_default(test_env_args):
     env_config_paths = (CONFIG_DIR / "environment_setup").iterdir()
     assert env_config_paths
@@ -151,7 +151,7 @@ def test_execute_environment_default(test_env_args):
             env.reset()
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_execute_environment_clone_python(tmp_path, test_env_args, capsys):
     """This should clone the existing python 3.10 conda environment for speedup"""
     test_env = {
@@ -171,7 +171,7 @@ def test_execute_environment_clone_python(tmp_path, test_env_args, capsys):
     assert "Cloned python conda environment" in out
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_open_pr(test_env_args):
     test_env_args = dataclasses.replace(
         test_env_args,
@@ -183,21 +183,21 @@ def test_open_pr(test_env_args):
         env.open_pr(_dry_run=True, trajectory=[])
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_interrupt_close(test_env_args):
     with swe_env_context(test_env_args) as env:
         env.reset()
         env.interrupt()
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_communicate_old(test_env_args):
     with mock.patch.dict("os.environ", {"SWE_AGENT_COMMUNICATE_METHOD": "processes"}):
         with swe_env_context(test_env_args) as env:
             env.reset()
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_env_with_hook(test_env_args):
     with swe_env_context(test_env_args) as env:
         env.add_hook(EnvHook())
diff --git a/tests/test_models.py b/tests/test_models.py
index 4ad209865..ac3f57c87 100644
--- a/tests/test_models.py
+++ b/tests/test_models.py
@@ -7,7 +7,7 @@
 from sweagent.agent.models import GroqModel, ModelArguments, OpenAIModel, TogetherModel
 
 
-@pytest.fixture()
+@pytest.fixture
 def openai_mock_client():
     model = Mock()
     response = Mock()
@@ -21,7 +21,7 @@ def openai_mock_client():
     return model
 
 
-@pytest.fixture()
+@pytest.fixture
 def mock_together_response():
     return {
         "choices": [{"text": "<human>Hello</human>"}],
diff --git a/tests/test_replay.py b/tests/test_replay.py
index 558633dc7..c45c15a0a 100644
--- a/tests/test_replay.py
+++ b/tests/test_replay.py
@@ -9,7 +9,7 @@
 from sweagent import CONFIG_DIR
 
 
-@pytest.fixture()
+@pytest.fixture
 def swe_agent_test_repo_clone(tmp_path):
     local_repo_path = tmp_path / "test-repo"
     clone_cmd = ["git", "clone", "https://github.com/swe-agent/test-repo", local_repo_path]
@@ -17,7 +17,7 @@ def swe_agent_test_repo_clone(tmp_path):
     return local_repo_path
 
 
-@pytest.fixture()
+@pytest.fixture
 def swe_agent_test_repo_traj(test_trajectories_path) -> Path:
     p = (
         test_trajectories_path
@@ -28,14 +28,14 @@ def swe_agent_test_repo_traj(test_trajectories_path) -> Path:
     return p
 
 
-@pytest.fixture()
+@pytest.fixture
 def swe_agent_test_repo_local_problem_stmt(swe_agent_test_repo_clone) -> Path:
     problem_stmt = swe_agent_test_repo_clone / "problem_statements" / "1.md"
     assert problem_stmt.is_file()
     return problem_stmt
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 @pytest.mark.parametrize("problem_statement_source", ["github", "local"])
 def test_model_replay_github_repo(
     tmpdir,
@@ -64,7 +64,7 @@ def test_model_replay_github_repo(
         main(**vars(args), forward_args=remaining_args)
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_model_replay_from_json(test_trajectories_path, test_data_sources_path):
     traj_path = (
         test_trajectories_path
@@ -96,7 +96,7 @@ def test_run_cli_help():
     subprocess.run(args, check=True)
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 @pytest.mark.parametrize("problem_statement_source", ["github", "local"])
 def test_model_replay_local_repo(swe_agent_test_repo_clone, swe_agent_test_repo_traj, problem_statement_source):
     local_repo_path = swe_agent_test_repo_clone
diff --git a/tests/test_run.py b/tests/test_run.py
index c8f894ce9..b5bfa5ada 100644
--- a/tests/test_run.py
+++ b/tests/test_run.py
@@ -17,7 +17,7 @@
 from sweagent.environment.swe_env import EnvironmentArguments, SWEEnv
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_run_cli_help():
     args = [
         "python",
@@ -27,7 +27,7 @@ def test_run_cli_help():
     subprocess.run(args, check=True)
 
 
-@pytest.fixture()
+@pytest.fixture
 def open_pr_hook_init_for_sop():
     hook = OpenPRHook()
     hook._token = os.environ.get("GITHUB_TOKEN", "")
@@ -37,7 +37,7 @@ def open_pr_hook_init_for_sop():
     return hook
 
 
-@pytest.fixture()
+@pytest.fixture
 def info_dict():
     return {
         "submission": "asdf",
@@ -100,7 +100,7 @@ def on_instance_start(self, *, index: int, instance: dict[str, Any]):
         raise ValueError(msg)
 
 
-@pytest.fixture()
+@pytest.fixture
 def test_script_args():
     return ScriptArguments(
         suffix="",
@@ -128,7 +128,7 @@ def test_script_args():
     )
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_exception_raised(test_script_args: ScriptArguments):
     assert test_script_args.raise_exceptions
     main = Main(test_script_args)
@@ -137,7 +137,7 @@ def test_exception_raised(test_script_args: ScriptArguments):
         main.main()
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 class CreateFakeLogFile(MainHook):
     """Testing the skip functionality"""
 
@@ -153,21 +153,21 @@ def on_instance_start(self, *, index: int, instance: dict[str, Any]):
         (self._traj_dir / f"{instance_id}.traj").write_text(json.dumps(dct))
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_existing_corrupted_args(test_script_args: ScriptArguments):
     main = Main(test_script_args)
     main.add_hook(CreateFakeLogFile())
     main.main()
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_main_hook(test_script_args: ScriptArguments):
     main = Main(test_script_args)
     main.add_hook(MainHook())
     main.main()
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 def test_agent_with_hook(test_script_args: ScriptArguments):
     main = Main(test_script_args)
     main.agent.add_hook(AgentHook())
@@ -177,7 +177,7 @@ def test_agent_with_hook(test_script_args: ScriptArguments):
 PERSISTENT_CONTAINER_NAME = "sweagent-test-persistent-container"
 
 
-@pytest.fixture()
+@pytest.fixture
 def _cleanup_persistent_container():
     yield
     client = docker.from_env()
@@ -185,7 +185,7 @@ def _cleanup_persistent_container():
     container.remove(force=True)
 
 
-@pytest.mark.slow()
+@pytest.mark.slow
 @pytest.mark.usefixtures("_cleanup_persistent_container")
 def test_agent_persistent_container(test_script_args: ScriptArguments, capsys):
     test_script_args = dataclasses.replace(
diff --git a/tests/test_server.py b/tests/test_server.py
index 304fcfcd7..6b9b2aa06 100644
--- a/tests/test_server.py
+++ b/tests/test_server.py
@@ -6,14 +6,14 @@
 from sweagent.api.server import app, socketio
 
 
-@pytest.fixture()
+@pytest.fixture
 def client():
     with app.test_client() as client:
         with app.app_context():
             yield client
 
 
-@pytest.fixture()
+@pytest.fixture
 def socket_client():
     client = SocketIOTestClient(app, socketio)
     yield client