diff --git a/tests/arcade_collection/convert/test_convert_to_contours.py b/tests/arcade_collection/convert/test_convert_to_contours.py
index 53c6dec..5934825 100644
--- a/tests/arcade_collection/convert/test_convert_to_contours.py
+++ b/tests/arcade_collection/convert/test_convert_to_contours.py
@@ -11,7 +11,7 @@ def setUp(self):
         self.frame = 5
         self.file = f"{self.series_key}_{self.frame:06d}.LOCATIONS.json"
 
-    def test_convert_to_contours_no_voxels(self) -> None:
+    def test_convert_to_contours_no_voxels(self):
         regions = ["DEFAULT"]
         box = (1, 1, 1)
         indices = {"top": [1]}
@@ -34,7 +34,7 @@ def test_convert_to_contours_no_voxels(self) -> None:
 
         self.assertDictEqual(expected_contours, contours)
 
-    def test_convert_to_contours_no_index(self) -> None:
+    def test_convert_to_contours_no_index(self):
         regions = ["DEFAULT"]
         box = (3, 3, 3)
         indices = {"top": [1]}
@@ -57,7 +57,7 @@ def test_convert_to_contours_no_index(self) -> None:
 
         self.assertDictEqual(expected_contours, contours)
 
-    def test_convert_to_contours_different_views(self) -> None:
+    def test_convert_to_contours_different_views(self):
         regions = ["DEFAULT"]
         box = (4, 5, 6)
         indices = {"top": [1], "side1": [1], "side2": [1]}
@@ -148,7 +148,7 @@ def test_convert_to_contours_different_views(self) -> None:
 
         self.assertDictEqual(expected_contours, contours)
 
-    def test_convert_to_contours_multiple_regions(self) -> None:
+    def test_convert_to_contours_multiple_regions(self):
         regions = ["DEFAULT", "REGION_A", "REGION_B"]
         box = (4, 5, 6)
         indices = {"top": [1]}
@@ -199,7 +199,7 @@ def test_convert_to_contours_multiple_regions(self) -> None:
 
         self.assertDictEqual(expected_contours, contours)
 
-    def test_convert_to_contours_disconnected_location(self) -> None:
+    def test_convert_to_contours_disconnected_location(self):
         regions = ["DEFAULT"]
         box = (5, 6, 6)
         indices = {"top": [1]}
@@ -261,7 +261,7 @@ def test_convert_to_contours_disconnected_location(self) -> None:
 
         self.assertDictEqual(expected_contours, contours)
 
-    def test_convert_to_contours_multiple_locations(self) -> None:
+    def test_convert_to_contours_multiple_locations(self):
         regions = ["DEFAULT"]
         box = (4, 5, 6)
         indices = {"top": [1]}
diff --git a/tests/arcade_collection/convert/test_convert_to_simularium_objects.py b/tests/arcade_collection/convert/test_convert_to_simularium_objects.py
index 94cead8..d0db8e5 100644
--- a/tests/arcade_collection/convert/test_convert_to_simularium_objects.py
+++ b/tests/arcade_collection/convert/test_convert_to_simularium_objects.py
@@ -10,7 +10,7 @@
 
 
 class TestConvertToSimulariumObjects(unittest.TestCase):
-    def test_convert_to_simularium_objects_potts(self) -> None:
+    def test_convert_to_simularium_objects_potts(self):
         series_key = "SERIES_KEY"
         simulation_type = "potts"
         categories = pd.DataFrame(
@@ -150,7 +150,7 @@ def make_bundle_data(object_id, display_index):
         self.assertDictEqual(model_info, trajectory_info["modelInfo"])
         self.assertListEqual(bundle_data, simularium["spatialData"]["bundleData"])
 
-    def test_convert_to_simularium_objects_invalid_type_throws_exception(self) -> None:
+    def test_convert_to_simularium_objects_invalid_type_throws_exception(self):
         with self.assertRaises(ValueError):
             simulation_type = "invalid_type"
             convert_to_simularium_objects(
diff --git a/tests/arcade_collection/convert/test_convert_to_simularium_shapes.py b/tests/arcade_collection/convert/test_convert_to_simularium_shapes.py
index 9febad3..3d949a5 100644
--- a/tests/arcade_collection/convert/test_convert_to_simularium_shapes.py
+++ b/tests/arcade_collection/convert/test_convert_to_simularium_shapes.py
@@ -20,7 +20,7 @@
 
 
 class TestConvertToSimulariumShapes(unittest.TestCase):
-    def test_convert_to_simularium_shapes_patch_invalid_data(self) -> None:
+    def test_convert_to_simularium_shapes_patch_invalid_data(self):
         simulation_type = "patch"
         simularium = convert_to_simularium_shapes(
             "", simulation_type, {"invalid": None}, (0, 0, 0), (0, 0, 0), (0, 0, 0), 0, {}
@@ -32,7 +32,7 @@ def test_convert_to_simularium_shapes_patch_invalid_data(self) -> None:
         "random",
         return_value=mock.Mock(),
     )
-    def test_convert_to_simularium_shapes_patch_with_cells(self, random_mock) -> None:
+    def test_convert_to_simularium_shapes_patch_with_cells(self, random_mock):
         series_key = "SERIES_KEY"
 
         contents = {
@@ -172,7 +172,7 @@ def make_bundle_data(object_id, display_index, radius, uvw, z, offset):
         "random",
         return_value=mock.Mock(),
     )
-    def test_convert_to_simularium_shapes_patch_with_graph(self, random_mock) -> None:
+    def test_convert_to_simularium_shapes_patch_with_graph(self, random_mock):
         series_key = "SERIES_KEY"
 
         contents = {
@@ -333,14 +333,14 @@ def make_bundle_data(object_id, display_index, radius, length, width, point1, po
         self.assertDictEqual(type_mapping, trajectory_info["typeMapping"])
         self.assertListEqual(bundle_data, simularium["spatialData"]["bundleData"])
 
-    def test_convert_to_simularium_shapes_potts_invalid_data(self) -> None:
+    def test_convert_to_simularium_shapes_potts_invalid_data(self):
         simulation_type = "potts"
         simularium = convert_to_simularium_shapes(
             "", simulation_type, {"invalid": None}, (0, 0, 0), (0, 0, 0), (0, 0, 0), 0, {}
         )
         self.assertEqual("", simularium)
 
-    def test_convert_to_simularium_shapes_potts_resolution_zero(self) -> None:
+    def test_convert_to_simularium_shapes_potts_resolution_zero(self):
         series_key = "SERIES_KEY"
 
         cells_contents = {
@@ -492,7 +492,7 @@ def make_bundle_data(object_id, display_index, center, voxels):
         self.assertDictEqual(type_mapping, trajectory_info["typeMapping"])
         self.assertListEqual(bundle_data, simularium["spatialData"]["bundleData"])
 
-    def test_convert_to_simularium_shapes_potts_resolution_one(self) -> None:
+    def test_convert_to_simularium_shapes_potts_resolution_one(self):
         series_key = "SERIES_KEY"
 
         hollow_cube_voxels = [[x, y, z] for x in range(3) for y in range(3) for z in range(3)]
@@ -628,7 +628,7 @@ def make_bundle_data(object_id, display_index, voxels):
         self.assertDictEqual(type_mapping, trajectory_info["typeMapping"])
         self.assertListEqual(bundle_data, simularium["spatialData"]["bundleData"])
 
-    def test_convert_to_simularium_shapes_potts_resolution_two(self) -> None:
+    def test_convert_to_simularium_shapes_potts_resolution_two(self):
         series_key = "SERIES_KEY"
 
         hollow_cube_voxels = [[x, y, z] for x in range(6) for y in range(6) for z in range(6)]
@@ -769,7 +769,7 @@ def make_bundle_data(object_id, display_index, voxels):
         self.assertDictEqual(type_mapping, trajectory_info["typeMapping"])
         self.assertListEqual(bundle_data, simularium["spatialData"]["bundleData"])
 
-    def test_convert_to_simularium_shapes_invalid_type_throws_exception(self) -> None:
+    def test_convert_to_simularium_shapes_invalid_type_throws_exception(self):
         with self.assertRaises(ValueError):
             simulation_type = "invalid_type"
             convert_to_simularium_shapes(