diff --git a/pyproject.toml b/pyproject.toml
index c208e56..313e9df 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -106,7 +106,7 @@ develop = [
   "poethepoet<0.28",
   "pyproject-fmt<2.3",
   "ruff<0.7",
-  "sphinx-autobuild==2021.3.14", # Newer versions stopped "watching" appropriately?
+  "sphinx-autobuild==2024.9.3", # Newer versions stopped "watching" appropriately?
   "validate-pyproject<0.20",
 ]
 docs = [