diff --git a/.github/workflows/pypi.yml b/.github/workflows/pypi.yml
index 3224949..5af6d19 100644
--- a/.github/workflows/pypi.yml
+++ b/.github/workflows/pypi.yml
@@ -11,14 +11,14 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - name: Set up Python 3.8
-        uses: actions/setup-python@v1
+      - name: Set up Python 3.11
+        uses: actions/setup-python@v2
         with:
-          python-version: 3.8
+          python-version: '3.11'
 
       - name: Prepare artifacts
         run: |
-          python setup.py sdist
+          python -m build
 
       - name: Publish to PyPI
         env:
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 11ade14..152b2a5 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -8,12 +8,12 @@ jobs:
   pre-commit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
 
-      - name: Set up Python 3.8
-        uses: actions/setup-python@v1
+      - name: Set up Python 3.11
+        uses: actions/setup-python@v2
         with:
-          python-version: 3.8
+          python-version: '3.11'
 
       - name: Run pre-commit
         run: |
@@ -24,14 +24,14 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        python-version: [3.6, 3.7, 3.8]
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
 
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v2
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2
       with:
         python-version: ${{ matrix.python-version }}
 
@@ -49,10 +49,10 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - name: Set up Python 3.8
-        uses: actions/setup-python@v1
+      - name: Set up Python 3.11
+        uses: actions/setup-python@v2
         with:
-          python-version: 3.8
+          python-version: '3.11'
 
       - name: Run sphinx
         run: |
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index cbe6ff1..b34adc7 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v2.4.0
+    rev: v4.4.0
     hooks:
       - id: trailing-whitespace
       - id: end-of-file-fixer
@@ -10,7 +10,7 @@ repos:
       - id: debug-statements
 
   - repo: https://github.com/psf/black
-    rev: 19.10b0
+    rev: 22.10.0
     hooks:
       - id: black
         args: [--line-length=88, --target-version=py35]
@@ -41,8 +41,7 @@ repos:
             | tests/test_spec_examples.py
           )
 
-  - repo: https://gitlab.com/pycqa/flake8
-    rev: 3.7.9
+  - repo: https://github.com/pycqa/flake8
+    rev: 6.0.0
     hooks:
       - id: flake8
-        args: [--max-line-length=99]
diff --git a/setup.py b/setup.py
index 11481e0..3d97e05 100755
--- a/setup.py
+++ b/setup.py
@@ -49,14 +49,11 @@
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3 :: Only",
-        "Programming Language :: Python :: 3.6",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: Implementation :: CPython",
         "Framework :: Setuptools Plugin",
         "Framework :: Sphinx",
         "Framework :: Sphinx :: Extension",
     ],
     namespace_packages=["sphinxcontrib"],
-    python_requires=">=3.6",
+    python_requires=">=3.7",
 )
diff --git a/sphinxcontrib/openapi/renderers/_httpdomain.py b/sphinxcontrib/openapi/renderers/_httpdomain.py
index 4746c47..630e11a 100644
--- a/sphinxcontrib/openapi/renderers/_httpdomain.py
+++ b/sphinxcontrib/openapi/renderers/_httpdomain.py
@@ -1,6 +1,7 @@
 """OpenAPI spec renderer."""
 
 import collections
+import collections.abc
 import copy
 import functools
 import http.client
@@ -174,7 +175,7 @@ def _get_schema_type(schema):
 
 
 _merge_mappings = deepmerge.Merger(
-    [(collections.Mapping, deepmerge.strategy.dict.DictStrategies("merge"))],
+    [(collections.abc.Mapping, deepmerge.strategy.dict.DictStrategies("merge"))],
     ["override"],
     ["override"],
 ).merge
diff --git a/tests/renderers/httpdomain/test_render_request_body.py b/tests/renderers/httpdomain/test_render_request_body.py
index 2794cbb..b45e9d5 100644
--- a/tests/renderers/httpdomain/test_render_request_body.py
+++ b/tests/renderers/httpdomain/test_render_request_body.py
@@ -79,7 +79,8 @@ def test_render_request_body_schema_description_turned_off(fakestate, oas_fragme
     """JSON schema description is not rendered b/c feature is off."""
 
     testrenderer = renderers.HttpdomainRenderer(
-        fakestate, {"no-json-schema-description": True},
+        fakestate,
+        {"no-json-schema-description": True},
     )
 
     markup = textify(
diff --git a/tests/renderers/httpdomain/test_render_request_body_example.py b/tests/renderers/httpdomain/test_render_request_body_example.py
index 40022dc..b27eaf0 100644
--- a/tests/renderers/httpdomain/test_render_request_body_example.py
+++ b/tests/renderers/httpdomain/test_render_request_body_example.py
@@ -122,7 +122,9 @@ def test_render_request_body_example(testrenderer, content, oas_fragment):
 
     markup = textify(
         testrenderer.render_request_body_example(
-            oas_fragment(content), "/evidences/{evidenceId}", "POST",
+            oas_fragment(content),
+            "/evidences/{evidenceId}",
+            "POST",
         )
     )
     assert markup == textwrap.dedent(
@@ -397,7 +399,9 @@ def test_render_request_body_example_external_errored_next_example(
     """Request body's example fallbacks on next when external cannot be retrieved."""
 
     responses.add(
-        responses.GET, "https://example.com/json/examples/test.json", status=404,
+        responses.GET,
+        "https://example.com/json/examples/test.json",
+        status=404,
     )
 
     markup = textify(
@@ -431,12 +435,16 @@ def test_render_request_body_example_external_errored_next_example(
 
 @responses.activate
 def test_render_request_body_example_external_errored_next_media_type(
-    testrenderer, oas_fragment, caplog,
+    testrenderer,
+    oas_fragment,
+    caplog,
 ):
     """Request body's example fallbacks on next when external cannot be retrieved."""
 
     responses.add(
-        responses.GET, "https://example.com/json/examples/test.json", status=404,
+        responses.GET,
+        "https://example.com/json/examples/test.json",
+        status=404,
     )
 
     markup = textify(
@@ -524,7 +532,9 @@ def test_render_request_body_example_noop(testrenderer, oas_fragment):
     ["http_method"], [pytest.param("POST"), pytest.param("PUT"), pytest.param("PATCH")]
 )
 def test_render_request_body_example_http_method(
-    testrenderer, oas_fragment, http_method,
+    testrenderer,
+    oas_fragment,
+    http_method,
 ):
     """Request body's example shows proper HTTP method."""
 
@@ -562,7 +572,9 @@ def test_render_request_body_example_http_method(
     [pytest.param("/evidences/{evidenceId}"), pytest.param("/heroes/{heroId}")],
 )
 def test_render_request_body_example_http_endpoint(
-    testrenderer, oas_fragment, http_endpoint,
+    testrenderer,
+    oas_fragment,
+    http_endpoint,
 ):
     """Request body's example shows proper HTTP method."""
 
diff --git a/tests/renderers/httpdomain/test_render_response_example.py b/tests/renderers/httpdomain/test_render_response_example.py
index 09e4f55..99791c5 100644
--- a/tests/renderers/httpdomain/test_render_response_example.py
+++ b/tests/renderers/httpdomain/test_render_response_example.py
@@ -375,7 +375,9 @@ def test_render_response_example_external_errored_next_example(
     """Path response's example fallbacks on next when external cannot be retrieved."""
 
     responses.add(
-        responses.GET, "https://example.com/json/examples/test.json", status=404,
+        responses.GET,
+        "https://example.com/json/examples/test.json",
+        status=404,
     )
 
     markup = textify(
@@ -412,7 +414,9 @@ def test_render_response_example_external_errored_next_media_type(
     """Path response's example fallbacks on next when external cannot be retrieved."""
 
     responses.add(
-        responses.GET, "https://example.com/json/examples/test.json", status=404,
+        responses.GET,
+        "https://example.com/json/examples/test.json",
+        status=404,
     )
 
     markup = textify(
diff --git a/tests/renderers/httpdomain/test_render_responses.py b/tests/renderers/httpdomain/test_render_responses.py
index f80437d..0c72e30 100644
--- a/tests/renderers/httpdomain/test_render_responses.py
+++ b/tests/renderers/httpdomain/test_render_responses.py
@@ -213,7 +213,8 @@ def test_render_responses_json_schema_description_turned_off(fakestate, oas_frag
     """JSON schema description is not rendered b/c feature is off."""
 
     testrenderer = renderers.HttpdomainRenderer(
-        fakestate, {"no-json-schema-description": True},
+        fakestate,
+        {"no-json-schema-description": True},
     )
 
     markup = textify(
diff --git a/tox.ini b/tox.ini
index 0cf5e21..938e424 100644
--- a/tox.ini
+++ b/tox.ini
@@ -7,7 +7,7 @@ deps =
     pytest
     responses
 commands =
-    {envpython} -m pytest tests/ --strict  {posargs}
+    {envpython} -m pytest tests/ --strict-markers {posargs}
 
 [testenv:pre-commit]
 skip_install = true
@@ -23,3 +23,17 @@ commands =
 [pytest]
 markers =
     regenerate_rendered_specs
+
+[flake8]
+# The following are ignored since they conflict with black
+#
+# E123 closing bracket does not match indentation of opening bracket's line
+# E241 multiple spaces after ':'
+# E226 missing whitespace around arithmetic operator
+# W503 line break before binary operator
+#
+# The following are ignored since we disagree with them
+#
+# F541 f-string is missing placeholders
+ignore = E123, E241, E226, W503, F541
+max-line-length = 99