diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index bbae4407..8f8cf508 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -20,7 +20,7 @@ repos:
     - id: end-of-file-fixer
     - id: trailing-whitespace
   - repo: https://github.com/tox-dev/pyproject-fmt
-    rev: v2.14.2
+    rev: v2.21.0
     hooks:
     - id: pyproject-fmt
   - repo: https://github.com/abravalheri/validate-pyproject
@@ -33,14 +33,14 @@ repos:
     - id: sphinx-lint
       types: [rst]
   - repo: https://github.com/pycqa/isort
-    rev: 7.0.0
+    rev: 8.0.1
     hooks:
     - id: isort
       additional_dependencies: ["toml"]
       entry: isort --profile=black
       name: isort (python)
   - repo: https://github.com/psf/black-pre-commit-mirror
-    rev: 26.1.0
+    rev: 26.3.1
     hooks:
     - id: black
   - repo: https://github.com/adamchainz/blacken-docs
@@ -51,7 +51,7 @@ repos:
       additional_dependencies:
       - black
   - repo: https://github.com/codespell-project/codespell
-    rev: v2.4.1
+    rev: v2.4.2
     hooks:
     - id: codespell
   - repo: local
diff --git a/docs/dashboards/voila/templating.rst b/docs/dashboards/voila/templating.rst
index f3e08d69..04567a29 100644
--- a/docs/dashboards/voila/templating.rst
+++ b/docs/dashboards/voila/templating.rst
@@ -371,7 +371,6 @@ app:
    from voila.app import Voila
    from voila.config import VoilaConfiguration
 
-
    config = VoilaConfiguration()
    config.prelaunch_hook = parameterize_with_papermill
    config.page_config_hook = page_config_hook
diff --git a/docs/sphinx/nbsphinx.rst b/docs/sphinx/nbsphinx.rst
index 7ca67404..89fafe5e 100644
--- a/docs/sphinx/nbsphinx.rst
+++ b/docs/sphinx/nbsphinx.rst
@@ -85,7 +85,6 @@ Custom formats
 
        import jupytext
 
-
        nbsphinx_custom_formats = {
            ".Rmd": lambda s: jupytext.reads(s, ".Rmd"),
        }
diff --git a/pyproject.toml b/pyproject.toml
index bc4ac767..665a1602 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,10 @@
 [project]
 name = "jupyter-tutorial"
 version = "24.1.0"
-description = "Training materials for setting up and using a research infrastructure based on Jupyter notebooks: https://cusy.io/en/seminars"
+description = """\
+  Training materials for setting up and using a research infrastructure based on Jupyter notebooks: \
+  https://cusy.io/en/seminars\
+  """
 readme = "README.rst"
 license = "BSD-3-Clause"
 license-files = [ "LICENSE" ]
@@ -18,10 +21,9 @@ classifiers = [
   "Programming Language :: Python :: 3.13",
   "Programming Language :: Python :: 3.14",
 ]
-dependencies = [  ]
-
+dependencies = []
 urls."Bug Tracker" = "https://github.com/veit/jupyter-tutorial/issues"
-urls."Homepage" = "https://github.com/veit/jupyter-tutorial/"
+urls.Homepage = "https://github.com/veit/jupyter-tutorial/"
 
 [dependency-groups]
 dev = [
@@ -47,7 +49,7 @@ docs = [
 ]
 
 [tool.setuptools]
-packages = [  ]
+packages = []
 
 [tool.black]
 line-length = 79
@@ -61,7 +63,6 @@ lines_between_types = 1
 multi_line_output = 3
 not_skip = "__init__.py"
 use_parentheses = true
-
 known_first_party = "jupyter-tutorial-de"
 known_third_party = [
   "Cython",