diff --git a/graphrag/leiden.py b/graphrag/leiden.py
index 9b03d628f..4c87f085f 100644
--- a/graphrag/leiden.py
+++ b/graphrag/leiden.py
@@ -7,7 +7,7 @@ Reference:
 
 import logging
 import html
-from typing import Any
+from typing import Any, cast
 from graspologic.partition import hierarchical_leiden
 from graspologic.utils import largest_connected_component