diff --git a/backend/apps/db/db.py b/backend/apps/db/db.py
index f6c1b181..a23294ff 100644
--- a/backend/apps/db/db.py
+++ b/backend/apps/db/db.py
@@ -158,7 +158,8 @@ def check_connection(trans: Trans, ds: CoreDatasource, is_raise: bool = False):
 def get_version(ds: CoreDatasource | AssistantOutDsSchema):
     conf = None
     if isinstance(ds, CoreDatasource):
-        conf = DatasourceConf(**json.loads(aes_decrypt(ds.configuration))) if ds.type != "excel" else get_engine_config()
+        conf = DatasourceConf(
+            **json.loads(aes_decrypt(ds.configuration))) if ds.type != "excel" else get_engine_config()
     if isinstance(ds, AssistantOutDsSchema):
         conf = DatasourceConf()
         conf.host = ds.host