diff --git a/setup.cfg b/setup.cfg
index 6957551..03862fe 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -65,4 +65,7 @@ docs =
 
 	# local
 
+	# workaround for sphinx-doc/sphinx#11543
+	sphinx < 7.1
+
 [options.entry_points]