diff --git a/.constraints/py3.10.txt b/.constraints/py3.10.txt
index 956b31e..42f1581 100644
--- a/.constraints/py3.10.txt
+++ b/.constraints/py3.10.txt
@@ -1,7 +1,7 @@
 # This file was autogenerated by uv via the following command:
 #    uv pip compile pyproject.toml -o .constraints/py3.10.txt --all-extras --no-annotate --python-version=3.10 --no-emit-package setuptools
 accessible-pygments==0.0.5
-alabaster==0.7.16
+alabaster==1.0.0
 anyio==4.6.0
 argon2-cffi==23.1.0
 argon2-cffi-bindings==21.2.0
@@ -30,7 +30,7 @@ decorator==5.1.1
 defusedxml==0.7.1
 distlib==0.3.9
 docstring-to-markdown==0.15
-docutils==0.19
+docutils==0.21.2
 exceptiongroup==1.2.2
 executing==2.1.0
 fastjsonschema==2.20.0
@@ -80,17 +80,17 @@ jupyterlab-server==2.27.3
 jupyterlab-widgets==3.0.13
 kiwisolver==1.4.7
 lsprotocol==2023.0.1
-markdown-it-py==2.2.0
+markdown-it-py==3.0.0
 markupsafe==3.0.1
 matplotlib==3.9.2
 matplotlib-inline==0.1.7
 mccabe==0.7.0
-mdit-py-plugins==0.3.5
+mdit-py-plugins==0.4.2
 mdurl==0.1.2
 mistune==3.0.2
 mypy-extensions==1.0.0
 myst-nb==1.1.2
-myst-parser==1.0.0
+myst-parser==4.0.0
 nbclient==0.6.8
 nbconvert==7.16.4
 nbdime==4.0.2
@@ -144,12 +144,12 @@ smmap==5.0.1
 sniffio==1.3.1
 snowballstemmer==2.2.0
 soupsieve==2.6
-sphinx==5.3.0
+sphinx==8.1.0
 sphinx-autobuild==2024.10.3
 sphinx-book-theme==1.1.3
 sphinx-comments==0.0.3
 sphinx-copybutton==0.5.2
-sphinx-design==0.6.0
+sphinx-design==0.6.1
 sphinx-exercise==0.4.1
 sphinx-togglebutton==0.3.2
 sphinxcontrib-applehelp==2.0.0
diff --git a/.constraints/py3.11.txt b/.constraints/py3.11.txt
index 57e50f3..80bfb2c 100644
--- a/.constraints/py3.11.txt
+++ b/.constraints/py3.11.txt
@@ -1,7 +1,7 @@
 # This file was autogenerated by uv via the following command:
 #    uv pip compile pyproject.toml -o .constraints/py3.11.txt --all-extras --no-annotate --python-version=3.11 --no-emit-package setuptools
 accessible-pygments==0.0.5
-alabaster==0.7.16
+alabaster==1.0.0
 anyio==4.6.0
 argon2-cffi==23.1.0
 argon2-cffi-bindings==21.2.0
@@ -30,7 +30,7 @@ decorator==5.1.1
 defusedxml==0.7.1
 distlib==0.3.9
 docstring-to-markdown==0.15
-docutils==0.19
+docutils==0.21.2
 executing==2.1.0
 fastjsonschema==2.20.0
 filelock==3.16.1
@@ -79,17 +79,17 @@ jupyterlab-server==2.27.3
 jupyterlab-widgets==3.0.13
 kiwisolver==1.4.7
 lsprotocol==2023.0.1
-markdown-it-py==2.2.0
+markdown-it-py==3.0.0
 markupsafe==3.0.1
 matplotlib==3.9.2
 matplotlib-inline==0.1.7
 mccabe==0.7.0
-mdit-py-plugins==0.3.5
+mdit-py-plugins==0.4.2
 mdurl==0.1.2
 mistune==3.0.2
 mypy-extensions==1.0.0
 myst-nb==1.1.2
-myst-parser==1.0.0
+myst-parser==4.0.0
 nbclient==0.6.8
 nbconvert==7.16.4
 nbdime==4.0.2
@@ -143,12 +143,12 @@ smmap==5.0.1
 sniffio==1.3.1
 snowballstemmer==2.2.0
 soupsieve==2.6
-sphinx==5.3.0
+sphinx==8.1.0
 sphinx-autobuild==2024.10.3
 sphinx-book-theme==1.1.3
 sphinx-comments==0.0.3
 sphinx-copybutton==0.5.2
-sphinx-design==0.6.0
+sphinx-design==0.6.1
 sphinx-exercise==0.4.1
 sphinx-togglebutton==0.3.2
 sphinxcontrib-applehelp==2.0.0
diff --git a/.constraints/py3.12.txt b/.constraints/py3.12.txt
index dbece0f..16ad224 100644
--- a/.constraints/py3.12.txt
+++ b/.constraints/py3.12.txt
@@ -1,7 +1,7 @@
 # This file was autogenerated by uv via the following command:
 #    uv pip compile pyproject.toml -o .constraints/py3.12.txt --all-extras --no-annotate --python-version=3.12 --no-emit-package setuptools
 accessible-pygments==0.0.5
-alabaster==0.7.16
+alabaster==1.0.0
 anyio==4.6.0
 argon2-cffi==23.1.0
 argon2-cffi-bindings==21.2.0
@@ -30,7 +30,7 @@ decorator==5.1.1
 defusedxml==0.7.1
 distlib==0.3.9
 docstring-to-markdown==0.15
-docutils==0.19
+docutils==0.21.2
 executing==2.1.0
 fastjsonschema==2.20.0
 filelock==3.16.1
@@ -79,17 +79,17 @@ jupyterlab-server==2.27.3
 jupyterlab-widgets==3.0.13
 kiwisolver==1.4.7
 lsprotocol==2023.0.1
-markdown-it-py==2.2.0
+markdown-it-py==3.0.0
 markupsafe==3.0.1
 matplotlib==3.9.2
 matplotlib-inline==0.1.7
 mccabe==0.7.0
-mdit-py-plugins==0.3.5
+mdit-py-plugins==0.4.2
 mdurl==0.1.2
 mistune==3.0.2
 mypy-extensions==1.0.0
 myst-nb==1.1.2
-myst-parser==1.0.0
+myst-parser==4.0.0
 nbclient==0.6.8
 nbconvert==7.16.4
 nbdime==4.0.2
@@ -143,12 +143,12 @@ smmap==5.0.1
 sniffio==1.3.1
 snowballstemmer==2.2.0
 soupsieve==2.6
-sphinx==5.3.0
+sphinx==8.1.0
 sphinx-autobuild==2024.10.3
 sphinx-book-theme==1.1.3
 sphinx-comments==0.0.3
 sphinx-copybutton==0.5.2
-sphinx-design==0.6.0
+sphinx-design==0.6.1
 sphinx-exercise==0.4.1
 sphinx-togglebutton==0.3.2
 sphinxcontrib-applehelp==2.0.0
diff --git a/.constraints/py3.9.txt b/.constraints/py3.9.txt
index 01b990c..a698da2 100644
--- a/.constraints/py3.9.txt
+++ b/.constraints/py3.9.txt
@@ -30,7 +30,7 @@ decorator==5.1.1
 defusedxml==0.7.1
 distlib==0.3.9
 docstring-to-markdown==0.15
-docutils==0.19
+docutils==0.21.2
 exceptiongroup==1.2.2
 executing==2.1.0
 fastjsonschema==2.20.0
@@ -81,17 +81,17 @@ jupyterlab-server==2.27.3
 jupyterlab-widgets==3.0.13
 kiwisolver==1.4.7
 lsprotocol==2023.0.1
-markdown-it-py==2.2.0
+markdown-it-py==3.0.0
 markupsafe==3.0.1
 matplotlib==3.9.2
 matplotlib-inline==0.1.7
 mccabe==0.7.0
-mdit-py-plugins==0.3.5
+mdit-py-plugins==0.4.2
 mdurl==0.1.2
 mistune==3.0.2
 mypy-extensions==1.0.0
 myst-nb==1.1.2
-myst-parser==1.0.0
+myst-parser==3.0.1
 nbclient==0.6.8
 nbconvert==7.16.4
 nbdime==4.0.2
@@ -145,12 +145,12 @@ smmap==5.0.1
 sniffio==1.3.1
 snowballstemmer==2.2.0
 soupsieve==2.6
-sphinx==5.3.0
+sphinx==7.4.7
 sphinx-autobuild==2024.10.3
 sphinx-book-theme==1.1.3
 sphinx-comments==0.0.3
 sphinx-copybutton==0.5.2
-sphinx-design==0.6.0
+sphinx-design==0.6.1
 sphinx-exercise==0.4.1
 sphinx-togglebutton==0.3.2
 sphinxcontrib-applehelp==2.0.0
diff --git a/pyproject.toml b/pyproject.toml
index 5da426b..1fc89f4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,13 +41,13 @@ dev = [
 doc = [
     "ipympl",
     "myst-nb",
+    "sphinx",
     "sphinx-book-theme",
     "sphinx-comments",
     "sphinx-copybutton",
     "sphinx-design",
     "sphinx-exercise",
     "sphinx-togglebutton",
-    "sphinx<6", # https://github.com/ComPWA/strong2020-salamanca/issues/29
 ]
 format = [
     "black",