diff --git a/pyproject.toml b/pyproject.toml
index 7b407320..396b7878 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,8 +45,8 @@ example = ["gdown==4.7.1"]
 docs = ["m2r2==0.3.3.post2",
     "sphinx-copybutton==0.5.2",
     "sphinx-tabs==3.4.1",
-    "sphinx-toolbox==3.4.0",
-    "furo==2023.8.19"]
+    "sphinx-toolbox==3.5.0",
+    "furo==2023.9.10"]
 
 [tool.hatch.version]
 path = "kwave/__init__.py"