diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b6b4a44..e9cc69e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python 3.9
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: 3.9
     - uses: pre-commit/action@v3.0.1
@@ -29,30 +29,36 @@ jobs:
         os: [ubuntu-latest]
         python-version: ["3.9", "3.10", "3.11", "3.12"]
         sphinx-version: ["~=7.0"]
+        extras: ["testing"]
         include:
         - os: ubuntu-latest
-          python-version: 3.9
-          sphinx-version: "~=5.0"
-        - os: ubuntu-latest
-          python-version: 3.9
+          python-version: "3.9"
           sphinx-version: "~=6.0"
+          extras: "testing"
+        - os: ubuntu-latest
+          python-version: "3.10"
+          sphinx-version: "~=8.0"
+          extras: "testing-no-myst"  # TODO myst does not yet support Sphinx 8.0
         - os: windows-latest
-          python-version: 3.9
+          python-version: "3.9"
           sphinx-version: "~=7.0"
+          extras: "testing"
 
     runs-on: ${{ matrix.os }}
 
+    name: Tests (py${{ matrix.python-version }}, Sphinx${{ matrix.sphinx-version }}, on ${{ matrix.os }})
+
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
         cache: pip
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install --upgrade "sphinx${{ matrix.sphinx-version }}" -e .[testing]
+        pip install --upgrade "sphinx${{ matrix.sphinx-version }}" -e .[${{ matrix.extras}}]
     - name: Run pytest
       run: |
         pytest --cov=sphinx_design --cov-report=xml --cov-report=term-missing
@@ -76,7 +82,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python 3.9
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: "3.9"
         cache: pip
@@ -115,7 +121,7 @@ jobs:
     - name: Checkout source
       uses: actions/checkout@v4
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: 3.9
     - name: install flit
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index b812969..d1d68f3 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -19,14 +19,14 @@ repos:
     - id: trailing-whitespace
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.4.4
+    rev: v0.5.5
     hooks:
     - id: ruff
       args: [--fix]
     - id: ruff-format
 
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.10.0
+    rev: v1.11.1
     hooks:
     - id: mypy
       additional_dependencies: []
diff --git a/.readthedocs.yml b/.readthedocs.yml
index a418de2..929b95b 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -3,7 +3,7 @@ version: 2
 build:
   os: ubuntu-22.04
   tools:
-    python: "3.9"
+    python: "3.10"
 
 python:
   install:
diff --git a/codecov.yml b/codecov.yml
index a30b482..3c12742 100644
--- a/codecov.yml
+++ b/codecov.yml
@@ -2,7 +2,7 @@ coverage:
   status:
     project:
       default:
-        target: 90%
+        target: 85%
         threshold: 0.2%
     patch:
       default:
diff --git a/pyproject.toml b/pyproject.toml
index c307e72..995c00c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,6 +19,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: Implementation :: CPython",
     "Topic :: Software Development :: Libraries :: Python Modules",
     "Topic :: Text Processing :: Markup",
@@ -27,7 +28,7 @@ classifiers = [
 ]
 keywords = ["sphinx", "extension", "material design", "web components"]
 requires-python = ">=3.9"
-dependencies = ["sphinx>=5,<8"]
+dependencies = ["sphinx>=6,<9"]
 
 [project.urls]
 Homepage = "https://github.com/executablebooks/sphinx-design"
@@ -35,20 +36,26 @@ Documentation = "https://sphinx-design.readthedocs.io"
 
 [project.optional-dependencies]
 code-style = ["pre-commit>=3,<4"]
-rtd = ["myst-parser>=1,<3"]
+rtd = ["myst-parser>=2,<4"]
 testing = [
-    "myst-parser>=1,<3",
-    "pytest~=7.1",
+    "myst-parser>=2,<4",
+    "pytest~=8.3",
+    "pytest-cov",
+    "pytest-regressions",
+    "defusedxml",
+]
+testing-no-myst = [
+    "pytest~=8.3",
     "pytest-cov",
     "pytest-regressions",
     "defusedxml",
 ]
 
-theme-furo = ["furo~=2024.5.4"]
+theme-furo = ["furo~=2024.7.18"]
 theme-pydata = ["pydata-sphinx-theme~=0.15.2"]
 theme-rtd = ["sphinx-rtd-theme~=2.0"]
 theme-sbt = ["sphinx-book-theme~=1.1"]
-theme-im = ["sphinx-immaterial~=0.11.11"]
+theme-im = ["sphinx-immaterial~=0.12.2"]
 
 [tool.flit.sdist]
 exclude = [
diff --git a/sphinx_design/cards.py b/sphinx_design/cards.py
index f7ba580..da522f5 100644
--- a/sphinx_design/cards.py
+++ b/sphinx_design/cards.py
@@ -226,7 +226,7 @@ def split_content(content: StringList, offset: int) -> CardContent:
         return CardContent(body, header, footer)
 
     @classmethod
-    def _create_component(  # noqa: PLR0913
+    def _create_component(
         cls,
         inst: SphinxDirective,
         name: str,
diff --git a/tests/test_snippets.py b/tests/test_snippets.py
index 986d1a3..e47bea7 100644
--- a/tests/test_snippets.py
+++ b/tests/test_snippets.py
@@ -7,6 +7,13 @@
 
 from .conftest import SphinxBuilder
 
+try:
+    import myst_parser  # noqa: F401
+
+    MYST_INSTALLED = True
+except ImportError:
+    MYST_INSTALLED = False
+
 SNIPPETS_PATH = Path(__file__).parent.parent / "docs" / "snippets"
 SNIPPETS_GLOB_RST = list((SNIPPETS_PATH / "rst").glob("[!_]*"))
 SNIPPETS_GLOB_MYST = list((SNIPPETS_PATH / "myst").glob("[!_]*"))
@@ -29,7 +36,7 @@ def test_snippets_rst(
     sphinx_builder: Callable[..., SphinxBuilder], path: Path, file_regression
 ):
     """Test snippets written in RestructuredText (before post-transforms)."""
-    builder = sphinx_builder()
+    builder = sphinx_builder(conf_kwargs={"extensions": ["sphinx_design"]})
     content = "Heading\n-------" + "\n\n" + path.read_text(encoding="utf8")
     builder.src_path.joinpath("index.rst").write_text(content, encoding="utf8")
     write_assets(builder.src_path)
@@ -49,6 +56,7 @@ def test_snippets_rst(
     SNIPPETS_GLOB_MYST,
     ids=[path.name[: -len(path.suffix)] for path in SNIPPETS_GLOB_MYST],
 )
+@pytest.mark.skipif(not MYST_INSTALLED, reason="myst-parser not installed")
 def test_snippets_myst(
     sphinx_builder: Callable[..., SphinxBuilder], path: Path, file_regression
 ):
@@ -77,7 +85,7 @@ def test_snippets_rst_post(
     sphinx_builder: Callable[..., SphinxBuilder], path: Path, file_regression
 ):
     """Test snippets written in RestructuredText (after HTML post-transforms)."""
-    builder = sphinx_builder()
+    builder = sphinx_builder(conf_kwargs={"extensions": ["sphinx_design"]})
     content = "Heading\n-------" + "\n\n" + path.read_text(encoding="utf8")
     builder.src_path.joinpath("index.rst").write_text(content, encoding="utf8")
     write_assets(builder.src_path)
@@ -97,6 +105,7 @@ def test_snippets_rst_post(
     SNIPPETS_GLOB_MYST,
     ids=[path.name[: -len(path.suffix)] for path in SNIPPETS_GLOB_MYST],
 )
+@pytest.mark.skipif(not MYST_INSTALLED, reason="myst-parser not installed")
 def test_snippets_myst_post(
     sphinx_builder: Callable[..., SphinxBuilder], path: Path, file_regression
 ):
@@ -120,7 +129,7 @@ def test_sd_hide_title_rst(
     sphinx_builder: Callable[..., SphinxBuilder], file_regression
 ):
     """Test that the root title is hidden."""
-    builder = sphinx_builder()
+    builder = sphinx_builder(conf_kwargs={"extensions": ["sphinx_design"]})
     content = ":sd_hide_title:\n\nHeading\n-------\n\ncontent"
     builder.src_path.joinpath("index.rst").write_text(content, encoding="utf8")
     builder.build()
@@ -134,6 +143,7 @@ def test_sd_hide_title_rst(
     )
 
 
+@pytest.mark.skipif(not MYST_INSTALLED, reason="myst-parser not installed")
 def test_sd_hide_title_myst(
     sphinx_builder: Callable[..., SphinxBuilder], file_regression
 ):
@@ -152,6 +162,7 @@ def test_sd_hide_title_myst(
     )
 
 
+@pytest.mark.skipif(not MYST_INSTALLED, reason="myst-parser not installed")
 def test_sd_custom_directives(
     sphinx_builder: Callable[..., SphinxBuilder], file_regression
 ):
diff --git a/tox.ini b/tox.ini
index fad8312..57aa07f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,12 +8,18 @@ envlist = py39
 [testenv]
 usedevelop = true
 
-[testenv:py{39,310,311,312}]
+[testenv:py{39,310,311,312,313}]
 description = Run unit tests with this Python version
 extras =
     testing
 commands = pytest {posargs}
 
+[testenv:py{39,310,311,312,313}-no-myst]
+description = Run unit tests with this Python version
+extras =
+    testing-no-myst
+commands = pytest {posargs}
+
 [testenv:docs-{alabaster,rtd,pydata,sbt,furo,im}]
 description =
     Run documentation build for this theme