diff --git a/.github/workflows/publication.yml b/.github/workflows/publication.yaml
similarity index 78%
rename from .github/workflows/publication.yml
rename to .github/workflows/publication.yaml
index f38db8f..a3a7b9c 100644
--- a/.github/workflows/publication.yml
+++ b/.github/workflows/publication.yaml
@@ -1,13 +1,13 @@
 name: Publication
 on:
   release:
-    types: [created]
+    types: [published]
 jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
-    - uses: actions/setup-python@v4
+    - uses: actions/checkout@v6
+    - uses: actions/setup-python@v6
       with:
         python-version: '3.8'
     - run: python -m pip install --upgrade tox-gh-actions
diff --git a/.github/workflows/validation.yml b/.github/workflows/validation.yaml
similarity index 71%
rename from .github/workflows/validation.yml
rename to .github/workflows/validation.yaml
index dd36e5f..764a1c9 100644
--- a/.github/workflows/validation.yml
+++ b/.github/workflows/validation.yaml
@@ -1,14 +1,14 @@
 name: Validation
 on: [push, pull_request]
 jobs:
-  build:
-    runs-on: ubuntu-20.04
+  tox:
+    runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
     steps:
-    - uses: actions/checkout@v3
-    - uses: actions/setup-python@v4
+    - uses: actions/checkout@v6
+    - uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
     - run: python -m pip install --upgrade tox-gh-actions
diff --git a/pyproject.toml b/pyproject.toml
index be63658..8df1d06 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,6 +25,7 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
     "Programming Language :: Python :: Implementation :: CPython",
     "Topic :: Software Development :: Testing",
 ]
diff --git a/tests/test_pytest_mypy.py b/tests/test_pytest_mypy.py
index 1ad7153..b621a81 100644
--- a/tests/test_pytest_mypy.py
+++ b/tests/test_pytest_mypy.py
@@ -8,7 +8,6 @@
 
 import pytest_mypy
 
-
 MYPY_VERSION = Version(mypy.version.__version__)
 PYTEST_VERSION = Version(pytest.__version__)
 PYTHON_VERSION = Version(
@@ -82,6 +81,12 @@ def test_mypy_encoding_warnings(testdir, monkeypatch):
     mypy_status_check = 1
     mypy_checks = mypy_file_checks + mypy_status_check
     expected_warnings = 2  # https://github.com/python/mypy/issues/14603
+    if MYPY_VERSION < Version("1.5"):
+        # DeprecationWarning: mypy_extensions.TypedDict is deprecated,
+        # and will be removed in a future version.
+        # Use typing.TypedDict or typing_extensions.TypedDict instead.
+        # https://github.com/python/mypy/pull/15494
+        expected_warnings += 1
     result.assert_outcomes(passed=mypy_checks, warnings=expected_warnings)
 
 
@@ -699,12 +704,10 @@ def test_mypy_report_style(testdir, xdist_args):
     """Verify that --mypy-report-style functions correctly."""
     module_name = "unmistakable_module_name"
     testdir.makepyfile(
-        **{
-            module_name: """
+        **{module_name: """
             def pyfunc(x: int) -> str:
                 return x * 2
-        """
-        },
+        """},
     )
     result = testdir.runpytest_subprocess("--mypy-report-style", "no-path", *xdist_args)
     mypy_file_checks = 1
diff --git a/tox.ini b/tox.ini
index 9deb574..efdc083 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,10 +5,11 @@ isolated_build = true
 envlist =
     py38-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
     py39-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
-    py310-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
-    py311-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
-    py312-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
-    py313-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
+    py310-pytest{7.0, 7.x, 8.0, 8.x, 9.0, 9.x}-mypy{1.0, 1.x, 2.0, 2.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
+    py311-pytest{7.0, 7.x, 8.0, 8.x, 9.0, 9.x}-mypy{1.0, 1.x, 2.0, 2.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
+    py312-pytest{7.0, 7.x, 8.0, 8.x, 9.0, 9.x}-mypy{1.0, 1.x, 2.0, 2.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
+    py313-pytest{7.0, 7.x, 8.0, 8.x, 9.0, 9.x}-mypy{1.0, 1.x, 2.0, 2.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
+    py314-pytest{9.0, 9.x}-mypy{2.0, 2.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
     static
     publish
 
@@ -16,10 +17,11 @@ envlist =
 python =
     3.8: py38-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
     3.9: py39-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
-    3.10: py310-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
-    3.11: py311-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
-    3.12: py312-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}, static, publish
-    3.13: py313-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
+    3.10: py310-pytest{7.0, 7.x, 8.0, 8.x, 9.0, 9.x}-mypy{1.0, 1.x, 2.0, 2.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
+    3.11: py311-pytest{7.0, 7.x, 8.0, 8.x, 9.0, 9.x}-mypy{1.0, 1.x, 2.0, 2.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
+    3.12: py312-pytest{7.0, 7.x, 8.0, 8.x, 9.0, 9.x}-mypy{1.0, 1.x, 2.0, 2.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}, static, publish
+    3.13: py313-pytest{7.0, 7.x, 8.0, 8.x, 9.0, 9.x}-mypy{1.0, 1.x, 2.0, 2.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
+    3.14: py314-pytest{7.0, 7.x, 8.0, 8.x, 9.0, 9.x}-mypy{1.0, 1.x, 2.0, 2.x}-xdist{1.x, 2.0, 2.x, 3.0, 3.x}
 
 [testenv]
 constrain_package_deps = true
@@ -28,17 +30,21 @@ deps =
     pytest7.x: pytest ~= 7.0
     pytest8.0: pytest ~= 8.0.0
     pytest8.x: pytest ~= 8.0
+    pytest9.0: pytest ~= 9.0.0
+    pytest9.x: pytest ~= 9.0
     mypy1.0: mypy ~= 1.0.0
     mypy1.x: mypy ~= 1.0
+    mypy2.0: mypy ~= 2.0.0
+    mypy2.x: mypy ~= 2.0
     xdist1.x: pytest-xdist ~= 1.0
     xdist2.0: pytest-xdist ~= 2.0.0
     xdist2.x: pytest-xdist ~= 2.0
     xdist3.0: pytest-xdist ~= 3.0.0
     xdist3.x: pytest-xdist ~= 3.0
 
-    packaging ~= 21.3
-    pytest-cov ~= 4.1.0
-    pytest-randomly ~= 3.4
+    packaging ~= 26.2
+    pytest-cov ~= 5.0.0
+    pytest-randomly ~= 3.15
 setenv =
     COVERAGE_FILE = .coverage.{envname}
 commands = pytest -p no:mypy {posargs:--cov pytest_mypy --cov-branch --cov-fail-under 100 --cov-report term-missing -n auto}
@@ -50,8 +56,8 @@ testpaths = tests
 passenv = TWINE_*
 constrain_package_deps = false
 deps =
-    build[virtualenv] ~= 1.0.0
-    twine ~= 5.0.0
+    build[virtualenv] ~= 1.5.0
+    twine ~= 6.2.0
 commands =
     {envpython} -m build --outdir {envtmpdir} .
     twine {posargs:check} {envtmpdir}/*
@@ -59,13 +65,13 @@ commands =
 [testenv:static]
 basepython = py312  # pytest.Node.from_parent uses typing.Self
 deps =
-    bandit ~= 1.7.0
-    black ~= 24.2.0
-    flake8 ~= 7.0.0
-    mypy ~= 1.11.0
+    bandit ~= 1.9.0
+    black ~= 26.5.0
+    flake8 ~= 7.3.0
+    mypy ~= 2.1.0
     pytest-xdist >= 3.6.0  # needed for type-checking
 commands =
-    black --check src tests
+    black --check --target-version py38 src tests
     flake8 src tests
     mypy --strict src
     bandit --recursive src