diff --git a/lightrag/operate.py b/lightrag/operate.py
index 4088f0ef..74c8e5f6 100644
--- a/lightrag/operate.py
+++ b/lightrag/operate.py
@@ -17,7 +17,6 @@ from .utils import (
     split_string_by_multi_markers,
     truncate_list_by_token_size,
     process_combine_contexts,
-    locate_json_string_body_from_string,
 )
 from .base import (
     BaseGraphStorage,