diff --git a/pyproject.toml b/pyproject.toml
index d53e5b2..ae33640 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -70,7 +70,7 @@ dev = [
     "pytest-cov==7.0.0",
     "setuptools==80.10.2",
     "setuptools-scm[toml]==9.2.2",
-    "sphinx==7.4.7",
+    "sphinx==8.1.3",
     "sphinx-automodapi==0.22.0",
     "sphinx-book-theme==1.1.4",
     "sphinx-rtd-theme==3.1.0",
diff --git a/uv.lock b/uv.lock
index ea82c01..a82f8fa 100644
--- a/uv.lock
+++ b/uv.lock
@@ -799,7 +799,7 @@ dev = [
     { name = "pytest-cov", specifier = "==7.0.0" },
     { name = "setuptools", specifier = "==80.10.2" },
     { name = "setuptools-scm", extras = ["toml"], specifier = "==9.2.2" },
-    { name = "sphinx", specifier = "==7.4.7" },
+    { name = "sphinx", specifier = "==8.1.3" },
     { name = "sphinx-automodapi", specifier = "==0.22.0" },
     { name = "sphinx-book-theme", specifier = "==1.1.4" },
     { name = "sphinx-rtd-theme", specifier = "==3.1.0" },
@@ -2468,7 +2468,7 @@ wheels = [
 
 [[package]]
 name = "sphinx"
-version = "7.4.7"
+version = "8.1.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "alabaster" },
@@ -2489,9 +2489,9 @@ dependencies = [
     { name = "sphinxcontrib-serializinghtml" },
     { name = "tomli", marker = "python_full_version < '3.11'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/5b/be/50e50cb4f2eff47df05673d361095cafd95521d2a22521b920c67a372dcb/sphinx-7.4.7.tar.gz", hash = "sha256:242f92a7ea7e6c5b406fdc2615413890ba9f699114a9c09192d7dfead2ee9cfe", size = 8067911, upload-time = "2024-07-20T14:46:56.059Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/6f/6d/be0b61178fe2cdcb67e2a92fc9ebb488e3c51c4f74a36a7824c0adf23425/sphinx-8.1.3.tar.gz", hash = "sha256:43c1911eecb0d3e161ad78611bc905d1ad0e523e4ddc202a58a821773dc4c927", size = 8184611, upload-time = "2024-10-13T20:27:13.93Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/0d/ef/153f6803c5d5f8917dbb7f7fcf6d34a871ede3296fa89c2c703f5f8a6c8e/sphinx-7.4.7-py3-none-any.whl", hash = "sha256:c2419e2135d11f1951cd994d6eb18a1835bd8fdd8429f9ca375dc1f3281bd239", size = 3401624, upload-time = "2024-07-20T14:46:52.142Z" },
+    { url = "https://files.pythonhosted.org/packages/26/60/1ddff83a56d33aaf6f10ec8ce84b4c007d9368b21008876fceda7e7381ef/sphinx-8.1.3-py3-none-any.whl", hash = "sha256:09719015511837b76bf6e03e42eb7595ac8c2e41eeb9c29c5b755c6b677992a2", size = 3487125, upload-time = "2024-10-13T20:27:10.448Z" },
 ]
 
 [[package]]