diff --git a/api/core/rag/retrieval/dataset_retrieval.py b/api/core/rag/retrieval/dataset_retrieval.py
index 1ea848e010..7068f63b13 100644
--- a/api/core/rag/retrieval/dataset_retrieval.py
+++ b/api/core/rag/retrieval/dataset_retrieval.py
@@ -54,6 +54,7 @@ from core.rag.retrieval.template_prompts import (
 )
 from core.tools.utils.dataset_retriever.dataset_retriever_base_tool import DatasetRetrieverBaseTool
 from extensions.ext_database import db
+from libs.json_in_md_parser import parse_and_check_json_markdown
 from models.dataset import ChildChunk, Dataset, DatasetMetadata, DatasetQuery, DocumentSegment
 from models.dataset import Document as DatasetDocument
 from services.external_knowledge_service import ExternalDatasetService
diff --git a/api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py b/api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py
index 962643dc15..025e3d2688 100644
--- a/api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py
+++ b/api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py
@@ -1,7 +1,7 @@
 import json
 import logging
-import time
 from collections import defaultdict
+import time
 from collections.abc import Mapping, Sequence
 from typing import Any, Optional, cast
 
diff --git a/api/services/dataset_service.py b/api/services/dataset_service.py
index e4f64d4399..450e0880cf 100644
--- a/api/services/dataset_service.py
+++ b/api/services/dataset_service.py
@@ -1,3 +1,4 @@
+import copy
 import datetime
 import json
 import logging
@@ -767,10 +768,11 @@ class DocumentService:
 
         if dataset.built_in_field_enabled:
             if document.doc_metadata:
-                document.doc_metadata[BuiltInField.document_name] = name
-        else:
-            document.name = name
+                doc_metadata = copy.deepcopy(document.doc_metadata)
+                doc_metadata[BuiltInField.document_name.value] = name
+                document.doc_metadata = doc_metadata
 
+        document.name = name
         db.session.add(document)
         db.session.commit()