diff --git a/pyproject.toml b/pyproject.toml
index ca795d7a..0614b24c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -61,7 +61,7 @@ optional-dependencies.dev = [
     "docker==7.1.0",
     "enum-tools[sphinx]==0.13.0",
     "freezegun==1.5.5",
-    "furo==2025.9.25",
+    "furo==2025.12.19",
     "interrogate==1.7.0",
     "mypy[faster-cache]==1.19.1",
     "mypy-strict-kwargs==2025.4.3",