diff --git a/tests/parse/test_document.py b/tests/parse/test_document.py
index 496a046861d67b1427cb0a42744704769abf3dbe..e8243e39de0767873e8b18abff97629c758b519a 100644
--- a/tests/parse/test_document.py
+++ b/tests/parse/test_document.py
@@ -1,36 +1,35 @@
-from bio_parser.parse.document import Document, Span, Tag, Token
-from tests.parse import DATA_DIR
 import pytest
+from bio_parser.parse.document import Document, Span, Tag, Token, _make_ner_label
 
-from bio_parser.parse.document import _make_ner_label
+from tests.parse import DATA_DIR
 
 FILEPATH = DATA_DIR / "valid.bio"
 
 
-@pytest.fixture
+@pytest.fixture()
 def document():
     return Document.from_file(FILEPATH)
 
 
 @pytest.mark.parametrize(
-    "tag, label, output",
-    (
+    ("tag", "label", "output"),
+    [
         (Tag.OUTSIDE, None, "O"),
         (Tag.BEGINNING, "GPE", "B-GPE"),
         (Tag.INSIDE, "GPE", "I-GPE"),
-    ),
+    ],
 )
 def test_make_ner_label(tag: Tag, label: str, output: str):
     assert _make_ner_label(tag=tag, label=label) == output
 
 
 @pytest.mark.parametrize(
-    "tag, label, error",
-    (
+    ("tag", "label", "error"),
+    [
         (Tag.OUTSIDE, "GPE", "Invalid label `GPE` with tag `O`"),
         (Tag.BEGINNING, None, "No named entity label found with tag `B`"),
         (Tag.INSIDE, None, "No named entity label found with tag `I`"),
-    ),
+    ],
 )
 def test_make_ner_label_invalid(tag: Tag, label: str, error: str):
     with pytest.raises(AssertionError, match=error):
@@ -71,7 +70,6 @@ def test_parse_document(document: Document):
     ] * len(" considers ") + ["B-VERB"] + ["I-VERB"] * len("anning") + ["O"] * len(
         " sidewalk delivery robots"
     )
-    print(document.word_labels)
     assert document.word_labels == [
         "GPE",
         "GPE",
@@ -193,7 +191,7 @@ def test_parse_token(document: Document):
 
 @pytest.mark.parametrize(
     "annotation",
-    ("Something something", "Something A-GPE", "Something GPE-A", "Something A"),
+    ["Something something", "Something A-GPE", "Something GPE-A", "Something A"],
 )
 def test_invalid_token(annotation: str):
     with pytest.raises(AssertionError, match="Could not parse annotation"):
diff --git a/tests/parse/test_validate.py b/tests/parse/test_validate.py
index b9ef73f02e6bd67fb60a201ab99d59f98cb8e864..160ea7b253e4f4987d1e2f9f725ab0a4425916db 100644
--- a/tests/parse/test_validate.py
+++ b/tests/parse/test_validate.py
@@ -1,5 +1,7 @@
 import json
+
 from bio_parser.parse.validate import run as validate
+
 from tests.parse import DATA_DIR
 
 
diff --git a/tests/ruff.toml b/tests/ruff.toml
index 48ca1e68090a0c3c1d01488bb55dfb52a399ae3f..ac81ceaf0288462a6d2477c8f044c22357b2a743 100644
--- a/tests/ruff.toml
+++ b/tests/ruff.toml
@@ -1,3 +1,6 @@
+# Extend the `pyproject.toml` file in the parent directory...
+extend = "../pyproject.toml"
+
 ignore = [
     # Pydocstyles.
     "D",
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 0162bffb89ba6bbac3f07a2be5b2ba6d2f1f92e9..1269b25d0f9fe1cb919b31bd9f4b453679e58e02 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -1,6 +1,7 @@
 import pytest
 from bio_parser.parse.document import Document
-from bio_parser.utils import load_dataset, check_valid_bio, check_complete
+from bio_parser.utils import check_complete, check_valid_bio, load_dataset
+
 from tests import FIXTURES
 
 DATA = FIXTURES / "utils"
@@ -8,7 +9,7 @@ DATA = FIXTURES / "utils"
 
 @pytest.mark.parametrize(
     "filenames",
-    (
+    [
         (
             [
                 DATA / "bad_format.bio",
@@ -27,16 +28,16 @@ DATA = FIXTURES / "utils"
                 DATA / "bad_entity_name.bio",
             ]
         ),
-    ),
+    ],
 )
 def test_check_valid_bio_raise(filenames):
-    with pytest.raises(Exception):
+    with pytest.raises(Exception):  # noqa: PT011
         check_valid_bio(filenames)
 
 
 @pytest.mark.parametrize(
     "filenames",
-    (
+    [
         (
             [
                 DATA / "labels" / "example_0.bio",
@@ -52,15 +53,15 @@ def test_check_valid_bio_raise(filenames):
             ]
         ),
         ([]),
-    ),
+    ],
 )
 def test_check_valid_bio(filenames):
     check_valid_bio(filenames)
 
 
 @pytest.mark.parametrize(
-    "labels, predictions",
-    (
+    ("labels", "predictions"),
+    [
         (
             [
                 DATA / "labels" / "example_0.bio",
@@ -77,15 +78,15 @@ def test_check_valid_bio(filenames):
             [],
             [],
         ),
-    ),
+    ],
 )
 def test_check_complete(labels, predictions):
     check_complete(labels, predictions)
 
 
 @pytest.mark.parametrize(
-    "labels, predictions, message",
-    (
+    ("labels", "predictions", "message"),
+    [
         (
             [
                 DATA / "labels" / "example_0.bio",
@@ -121,7 +122,7 @@ def test_check_complete(labels, predictions):
             ],
             "Missing prediction files: {'example_0.bio'}.\nMissing label files: {'example_1.bio'}.",
         ),
-    ),
+    ],
 )
 def test_check_complete_raise(labels, predictions, message):
     with pytest.raises(FileNotFoundError, match=message):
@@ -141,8 +142,8 @@ def test_load_dataset():
 
 
 @pytest.mark.parametrize(
-    "label_dir, prediction_dir, message",
-    (
+    ("label_dir", "prediction_dir", "message"),
+    [
         (
             DATA / "labels_empty",
             DATA / "predictions",
@@ -153,7 +154,7 @@ def test_load_dataset():
             DATA / "predictions_empty",
             "Empty prediction directory",
         ),
-    ),
+    ],
 )
 def test_load_empty_dataset(label_dir, prediction_dir, message):
     with pytest.raises(FileNotFoundError, match=f"^{message}: .*"):