diff --git a/bot/retrievers/retrieve_similar_nodes.py b/bot/retrievers/retrieve_similar_nodes.py
index c88e178..e7954f9 100644
--- a/bot/retrievers/retrieve_similar_nodes.py
+++ b/bot/retrievers/retrieve_similar_nodes.py
@@ -67,7 +67,7 @@ def query_db(
         group_by_metadata = kwargs.get("group_by_metadata", [])
         if not isinstance(group_by_metadata, list):
             raise ValueError("Expected 'group_by_metadata' to be a list.")
-        
+
         self._vector_store._initialize()
 
         if not aggregate_records: