diff --git a/pyproject.toml b/pyproject.toml
index 9ff05259..f8105b5f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -78,7 +78,7 @@ docs = [
   "webargs[frameworks]",
   "Sphinx==8.2.3",
   "sphinx-issues==5.0.1",
-  "furo==2025.9.25",
+  "furo==2025.12.19",
 ]
 dev = ["webargs[tests]", "tox", "pre-commit>=3.5,<5.0"]