diff --git a/tardis/io/model/readers/tests/test_arepo_parser.py b/tardis/io/model/readers/tests/test_arepo_parser.py
index fd88eaaec8f..c874e5af6c2 100644
--- a/tardis/io/model/readers/tests/test_arepo_parser.py
+++ b/tardis/io/model/readers/tests/test_arepo_parser.py
@@ -8,7 +8,7 @@
 from tardis.io.model.readers import arepo
 
 
-@pytest.fixture()
+@pytest.fixture
 def arepo_snapshot_fname(tardis_regression_path):
     return Path(tardis_regression_path) / "arepo_data" / "arepo_snapshot.json"
 
diff --git a/tardis/plasma/tests/test_tardis_model_density_config.py b/tardis/plasma/tests/test_tardis_model_density_config.py
index 5551e7c4eb4..81212b874d6 100644
--- a/tardis/plasma/tests/test_tardis_model_density_config.py
+++ b/tardis/plasma/tests/test_tardis_model_density_config.py
@@ -14,14 +14,14 @@ def tardis_model_density_config(example_model_file_dir):
     )
 
 
-@pytest.fixture()
+@pytest.fixture
 def raw_simulation_state(tardis_model_density_config, kurucz_atomic_data):
     return SimulationState.from_config(
         tardis_model_density_config, atom_data=kurucz_atomic_data
     )
 
 
-@pytest.fixture()
+@pytest.fixture
 def raw_plasma(
     tardis_model_density_config, raw_simulation_state, kurucz_atomic_data
 ):
diff --git a/tardis/transport/montecarlo/tests/conftest.py b/tardis/transport/montecarlo/tests/conftest.py
index 61f80e4aac0..9a28726265c 100644
--- a/tardis/transport/montecarlo/tests/conftest.py
+++ b/tardis/transport/montecarlo/tests/conftest.py
@@ -147,7 +147,7 @@ def static_packet():
     )
 
 
-@pytest.fixture()
+@pytest.fixture
 def set_seed_fixture():
     def set_seed(value):
         np.random.seed(value)
@@ -155,7 +155,7 @@ def set_seed(value):
     return njit(set_seed)
 
 
-@pytest.fixture()
+@pytest.fixture
 def random_call_fixture():
     def random_call():
         np.random.random()
diff --git a/tardis/transport/montecarlo/tests/test_rpacket_last_interaction_tracker.py b/tardis/transport/montecarlo/tests/test_rpacket_last_interaction_tracker.py
index b2c449cadab..54c84df5579 100644
--- a/tardis/transport/montecarlo/tests/test_rpacket_last_interaction_tracker.py
+++ b/tardis/transport/montecarlo/tests/test_rpacket_last_interaction_tracker.py
@@ -18,7 +18,7 @@ def interaction_type_in_use(
     return interaction_type
 
 
-@pytest.fixture()
+@pytest.fixture
 def shell_id_in_use(
     nb_simulation_verysimple,
     interaction_type_in_use,
@@ -32,7 +32,7 @@ def shell_id_in_use(
     return shell_id[mask]
 
 
-@pytest.fixture()
+@pytest.fixture
 def r_in_use(
     nb_simulation_verysimple,
     interaction_type_in_use,
@@ -65,7 +65,7 @@ def interaction_type_to_check(
     return interaction_type
 
 
-@pytest.fixture()
+@pytest.fixture
 def shell_id_to_check(
     nb_simulation_verysimple,
     interaction_type_to_check,
@@ -83,7 +83,7 @@ def shell_id_to_check(
     return shell_id[mask]
 
 
-@pytest.fixture()
+@pytest.fixture
 def r_to_check(
     nb_simulation_verysimple,
     interaction_type_to_check,
@@ -101,7 +101,7 @@ def r_to_check(
     return r[mask]
 
 
-@pytest.fixture()
+@pytest.fixture
 def nu_packet_collection(
     nb_simulation_verysimple,
 ):
@@ -112,7 +112,7 @@ def nu_packet_collection(
     return packet_collection.output_nus
 
 
-@pytest.fixture()
+@pytest.fixture
 def nu_to_check(
     nb_simulation_verysimple,
 ):
diff --git a/tardis/transport/montecarlo/tests/test_rpacket_tracker.py b/tardis/transport/montecarlo/tests/test_rpacket_tracker.py
index 971183d2360..fd9dec9fae7 100644
--- a/tardis/transport/montecarlo/tests/test_rpacket_tracker.py
+++ b/tardis/transport/montecarlo/tests/test_rpacket_tracker.py
@@ -9,7 +9,7 @@
 from tardis.transport.montecarlo.r_packet import InteractionType
 
 
-@pytest.fixture()
+@pytest.fixture
 def interaction_type_last_interaction_class(
     simulation_rpacket_tracking,
 ):
@@ -20,7 +20,7 @@ def interaction_type_last_interaction_class(
     return interaction_type
 
 
-@pytest.fixture()
+@pytest.fixture
 def shell_id_last_interaction_class(
     simulation_rpacket_tracking,
 ):
@@ -39,7 +39,7 @@ def shell_id_last_interaction_class(
     return last_line_interaction_shell_id
 
 
-@pytest.fixture()
+@pytest.fixture
 def nu_from_packet_collection(
     simulation_rpacket_tracking,
 ):
@@ -73,7 +73,7 @@ def last_interaction_type_rpacket_tracker(rpacket_tracker):
     return interaction_type
 
 
-@pytest.fixture()
+@pytest.fixture
 def shell_id_rpacket_tracker(
     rpacket_tracker, last_interaction_type_rpacket_tracker
 ):
@@ -92,7 +92,7 @@ def shell_id_rpacket_tracker(
     return last_line_interaction_shell_id
 
 
-@pytest.fixture()
+@pytest.fixture
 def nu_rpacket_tracker(rpacket_tracker):
     """Output nu of rpacket from RPacketTracker class"""
     no_of_packets = len(rpacket_tracker)
diff --git a/tardis/visualization/tools/tests/test_convergence_plot.py b/tardis/visualization/tools/tests/test_convergence_plot.py
index bb69e23e68b..c511c6ce8c2 100644
--- a/tardis/visualization/tools/tests/test_convergence_plot.py
+++ b/tardis/visualization/tools/tests/test_convergence_plot.py
@@ -22,7 +22,7 @@ def convergence_plots(request):
     return convergence_plots
 
 
-@pytest.fixture()
+@pytest.fixture
 def fetch_luminosity_data(convergence_plots):
     """Prepare data for t_inner and luminosity plot."""
     for item in [2] * convergence_plots.iterations: