diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 5f7cf98..03f2ecf 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,15 +1,20 @@
 repos:
   - repo: https://github.com/asottile/pyupgrade
-    rev: v2.6.1
+    rev: v2.7.2
     hooks:
       - id: pyupgrade
-        args: ["--py3-plus"]
+        args: ["--py36-plus"]
 
   - repo: https://github.com/psf/black
-    rev: 19.10b0
+    rev: 20.8b1
     hooks:
       - id: black
-        args: ["--target-version", "py35"]
+        args: ["--target-version", "py36"]
+
+  - repo: https://github.com/PyCQA/isort
+    rev: 5.5.1
+    hooks:
+      - id: isort
 
   - repo: https://gitlab.com/pycqa/flake8
     rev: 3.8.3
@@ -17,24 +22,14 @@ repos:
       - id: flake8
         additional_dependencies: [flake8-2020, flake8-implicit-str-concat]
 
-  - repo: https://github.com/asottile/seed-isort-config
-    rev: v2.2.0
-    hooks:
-      - id: seed-isort-config
-
-  - repo: https://github.com/timothycrosley/isort
-    rev: 4.3.21
-    hooks:
-      - id: isort
-
   - repo: https://github.com/pre-commit/pygrep-hooks
-    rev: v1.5.1
+    rev: v1.6.0
     hooks:
       - id: python-check-blanket-noqa
       - id: rst-backticks
 
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v3.1.0
+    rev: v3.2.0
     hooks:
       - id: check-merge-conflict
       - id: check-json
diff --git a/pyproject.toml b/pyproject.toml
index 3f77411..95fe5b6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,4 +2,7 @@
 requires = ["setuptools>=42", "wheel", "setuptools_scm[toml]>=3.4"]
 
 [tool.black]
-target_version = ["py35"]
+target_version = ["py36"]
+
+[tool.isort]
+profile = "black"
diff --git a/setup.cfg b/setup.cfg
index ef7aac6..f4546ad 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,10 +1,2 @@
 [flake8]
 max_line_length = 88
-
-[tool:isort]
-known_third_party = pytest,setuptools,ujson
-force_grid_wrap = 0
-include_trailing_comma = True
-line_length = 88
-multi_line_output = 3
-use_parentheses = True
diff --git a/tests/benchmark.py b/tests/benchmark.py
index 13d5588..8f41f7d 100644
--- a/tests/benchmark.py
+++ b/tests/benchmark.py
@@ -46,8 +46,8 @@ def results_record_result(callback, is_encode, count):
     library = callback_name.split("_")[-1]
     try:
         results = timeit.repeat(
-            "{}()".format(callback_name),
-            "from __main__ import {}".format(callback_name),
+            f"{callback_name}()",
+            f"from __main__ import {callback_name}",
             repeat=10,
             number=count,
         )
@@ -84,10 +84,10 @@ def results_output_table():
         )
     )
     if not skip_lib_comparisons:
-        print("- nujson    : {}".format(nujson.__version__))
-        print("- orjson    : {}".format(orjson.__version__))
-        print("- simplejson: {}".format(simplejson.__version__))
-    print("- ujson     : {}".format(ujson.__version__))
+        print(f"- nujson    : {nujson.__version__}")
+        print(f"- orjson    : {orjson.__version__}")
+        print(f"- simplejson: {simplejson.__version__}")
+    print(f"- ujson     : {ujson.__version__}")
     print()
 
     column_widths = [max(len(r[0]) for r in benchmark_results)]
diff --git a/tests/test_ujson.py b/tests/test_ujson.py
index 9123254..51b3442 100644
--- a/tests/test_ujson.py
+++ b/tests/test_ujson.py
@@ -498,7 +498,11 @@ def test_decode_no_assert(test_input):
 
 
 @pytest.mark.parametrize(
-    "test_input, expected", [("31337", 31337), ("-31337", -31337)],
+    "test_input, expected",
+    [
+        ("31337", 31337),
+        ("-31337", -31337),
+    ],
 )
 def test_decode(test_input, expected):
     assert ujson.decode(test_input) == expected
@@ -682,7 +686,11 @@ def test_encode(test_input, expected):
             9223372036854775807,
             9223372036854775807,
         ],
-        [18446744073709551615, 18446744073709551615, 18446744073709551615],
+        [
+            18446744073709551615,
+            18446744073709551615,
+            18446744073709551615,
+        ],
     ],
 )
 def test_encode_list_long_conversion(test_input):
@@ -692,7 +700,11 @@ def test_encode_list_long_conversion(test_input):
 
 
 @pytest.mark.parametrize(
-    "test_input", [9223372036854775807, 18446744073709551615],
+    "test_input",
+    [
+        9223372036854775807,
+        18446744073709551615,
+    ],
 )
 def test_encode_long_conversion(test_input):
     output = ujson.encode(test_input)
@@ -702,7 +714,17 @@ def test_encode_long_conversion(test_input):
     assert test_input == ujson.decode(output)
 
 
-@pytest.mark.parametrize("test_input", [[[[[]]]], 31337, -31337, None, True, False])
+@pytest.mark.parametrize(
+    "test_input",
+    [
+        [[[[]]]],
+        31337,
+        -31337,
+        None,
+        True,
+        False,
+    ],
+)
 def test_encode_decode(test_input):
     output = ujson.encode(test_input)