diff --git a/pyproject.toml b/pyproject.toml
index 8cf7b1a4..8376d4d4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -51,7 +51,7 @@ example = ["gdown==5.2.0"]
 docs = [ "sphinx-mdinclude==0.6.2",
     "sphinx-copybutton==0.5.2",
     "sphinx-tabs==3.4.7",
-    "sphinx-toolbox==3.8.0",
+    "sphinx-toolbox==3.9.0",
     "furo==2024.8.6"]
 dev = ["pre-commit==4.1.0"]