diff --git a/pyproject.toml b/pyproject.toml
index 163c5eb..99c2f74 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -68,7 +68,7 @@ dev = [
     "setuptools",
     "wheel",
     "Sphinx>=4.3.0,<7.1.0",
-    "furo==2023.7.26",
+    "furo==2025.9.25",
     "myst-parser>=1.0,<2.1",
     "sphinx-copybutton==0.5.2",
     "sphinx-autobuild==2021.3.14",