diff --git a/pyproject.toml b/pyproject.toml
index 19d7862..b57e494 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -125,7 +125,7 @@ docs = [
   "numpydoc~=1.10.0; python_version >= '3.10'",
   # sphinx-design doesn't support sphinx 9
   "sphinx<9; python_version >= '3.10'",
-  "furo~=2025.9.25; python_version >= '3.10'",
+  "furo>=2025.9.25,<2025.13.0; python_version >= '3.10'",
   "sphinx-copybutton~=0.5.2; python_version >= '3.10'",
   "sphinxcontrib-towncrier~=0.5.0a0; python_version >= '3.10'",
   "towncrier~=25.8.0; python_version >= '3.10'",
diff --git a/uv.lock b/uv.lock
index 1558484..dd0d897 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1829,7 +1829,7 @@ dev = [
 ]
 docs = [
     { name = "autodoc-pydantic", marker = "python_full_version >= '3.10'", specifier = "~=2.2.0" },
-    { name = "furo", marker = "python_full_version >= '3.10'", specifier = "~=2025.9.25" },
+    { name = "furo", marker = "python_full_version >= '3.10'", specifier = ">=2025.9.25,<2025.13.0" },
     { name = "numpydoc", marker = "python_full_version >= '3.10'", specifier = "~=1.10.0" },
     { name = "setuptools-git-versioning", marker = "python_full_version >= '3.10'", specifier = "~=2.1.0" },
     { name = "sphinx", marker = "python_full_version >= '3.10'", specifier = "<9" },
@@ -2001,7 +2001,7 @@ wheels = [
 
 [[package]]
 name = "furo"
-version = "2025.9.25"
+version = "2025.12.19"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "accessible-pygments", marker = "python_full_version >= '3.10'" },
@@ -2011,9 +2011,9 @@ dependencies = [
     { name = "sphinx", version = "8.2.3", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.11'" },
     { name = "sphinx-basic-ng", marker = "python_full_version >= '3.10'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/4e/29/ff3b83a1ffce74676043ab3e7540d398e0b1ce7660917a00d7c4958b93da/furo-2025.9.25.tar.gz", hash = "sha256:3eac05582768fdbbc2bdfa1cdbcdd5d33cfc8b4bd2051729ff4e026a1d7e0a98", size = 1662007, upload-time = "2025-09-25T21:37:19.221Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/ec/20/5f5ad4da6a5a27c80f2ed2ee9aee3f9e36c66e56e21c00fde467b2f8f88f/furo-2025.12.19.tar.gz", hash = "sha256:188d1f942037d8b37cd3985b955839fea62baa1730087dc29d157677c857e2a7", size = 1661473, upload-time = "2025-12-19T17:34:40.889Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/ba/69/964b55f389c289e16ba2a5dfe587c3c462aac09e24123f09ddf703889584/furo-2025.9.25-py3-none-any.whl", hash = "sha256:2937f68e823b8e37b410c972c371bc2b1d88026709534927158e0cb3fac95afe", size = 340409, upload-time = "2025-09-25T21:37:17.244Z" },
+    { url = "https://files.pythonhosted.org/packages/f4/b2/50e9b292b5cac13e9e81272c7171301abc753a60460d21505b606e15cf21/furo-2025.12.19-py3-none-any.whl", hash = "sha256:bb0ead5309f9500130665a26bee87693c41ce4dbdff864dbfb6b0dae4673d24f", size = 339262, upload-time = "2025-12-19T17:34:38.905Z" },
 ]
 
 [[package]]