diff --git a/labelu/internal/application/service/pre_annotation.py b/labelu/internal/application/service/pre_annotation.py
index 26783b19..1e766e6f 100644
--- a/labelu/internal/application/service/pre_annotation.py
+++ b/labelu/internal/application/service/pre_annotation.py
@@ -25,10 +25,14 @@
 def read_jsonl_file(db: Session, file_id: int) -> List[dict]:
     attachment = crud_attachment.get(db, file_id)
     if attachment is None:
-        raise LabelUException(status_code=404, code=ErrorCode.CODE_51001_TASK_ATTACHMENT_NOT_FOUND)
+        return []
 
     attachment_path = attachment.path
     file_full_path = settings.MEDIA_ROOT.joinpath(attachment_path.lstrip("/"))
+    
+    # check if the file exists
+    if not file_full_path.exists() or not attachment.filename.endswith('.jsonl'):
+        return []
 
     try:
         with open(file_full_path, "r", encoding="utf-8") as f:
diff --git a/pyproject.toml b/pyproject.toml
index 2bedaf7c..ff3e356f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "labelu"
-version = '1.0.6'
+version = '1.0.7-alpha.1'
 description = ""
 license = "Apache-2.0"
 authors = ["shenguanlin <shenguanlin@pjlab.org.cn>"]