diff --git a/pyproject.toml b/pyproject.toml
index 95780a599..08bf3e3c6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -111,7 +111,7 @@ dev = [
     "sphinx-pyproject==0.3.0",
     "sphinx-substitution-extensions==2026.8.13.1",
     "sphinx-toolbox==4.3.1",
-    "sphinxcontrib-httpdomain==2.0.0",
+    "sphinxcontrib-httpdomain==2.1.0",
     "sphinxcontrib-spelling==8.0.2",
     # ``sphinxcontrib-towncrier`` renders unreleased news fragments
     # as Markdown in docs/source/unreleased.md during Sphinx builds.
diff --git a/uv.lock b/uv.lock
index 483c31b51..8532623ff 100644
--- a/uv.lock
+++ b/uv.lock
@@ -2399,14 +2399,14 @@ wheels = [
 
 [[package]]
 name = "sphinxcontrib-httpdomain"
-version = "2.0.0"
+version = "2.1.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "sphinx" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/76/a2/b9b96904f691a0b4ccb8277a72b4ec351590286b44a433d0cefe78703c2b/sphinxcontrib_httpdomain-2.0.0.tar.gz", hash = "sha256:9e4e8733bf41ee4d9d5f9eb4dbf3cc2c22a665221ba42c5c3ae181b98af8855d", size = 17155, upload-time = "2026-02-04T21:23:56.422Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/71/84/da10a6e1fd387eeef62ced1368f55404bcbf7dd8d67411510ba0abaef3b7/sphinxcontrib_httpdomain-2.1.0.tar.gz", hash = "sha256:889d7f69b55633e22a28a8222c4952df65f707e0a9a157f38729625a33ea5d5b", size = 20485, upload-time = "2026-10-05T17:28:58.859Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/44/48/9524b2a8cd11a3802a266aa4631ae7842cd764cf9bf3701bbde547b040b5/sphinxcontrib_httpdomain-2.0.0-py3-none-any.whl", hash = "sha256:e968775c9994f8139cb6ff91e1f6a8557396a2cc08073997eed10d9b39f96df3", size = 26137, upload-time = "2026-02-04T21:23:55.444Z" },
+    { url = "https://files.pythonhosted.org/packages/d2/d0/afa87a09a48059fa214248b5286cb2454458ae2dc670f32226838670c370/sphinxcontrib_httpdomain-2.1.0-py3-none-any.whl", hash = "sha256:62ce09d3091d1987916075ba0b3a0e16b7c577d4baa0c109a853ab2587fff1ea", size = 30568, upload-time = "2026-10-05T17:28:57.881Z" },
 ]
 
 [[package]]
@@ -2982,7 +2982,7 @@ dev = [
     { name = "sphinx-pyproject", specifier = "==0.3.0" },
     { name = "sphinx-substitution-extensions", specifier = "==2026.8.13.1" },
     { name = "sphinx-toolbox", specifier = "==4.3.1" },
-    { name = "sphinxcontrib-httpdomain", specifier = "==2.0.0" },
+    { name = "sphinxcontrib-httpdomain", specifier = "==2.1.0" },
     { name = "sphinxcontrib-spelling", specifier = "==8.0.2" },
     { name = "sphinxcontrib-towncrier", specifier = "==0.5.0a0" },
     { name = "strict-kwargs", specifier = "==2026.8.28.post2" },