diff --git a/backend/app/main_graph/nodes/_utils.py b/backend/app/main_graph/nodes/_utils.py
index abd0e1b..e09f105 100644
--- a/backend/app/main_graph/nodes/_utils.py
+++ b/backend/app/main_graph/nodes/_utils.py
@@ -24,9 +24,7 @@ async def dispatch_custom_event(
         return
     try:
         from langchain_core.callbacks.manager import adispatch_custom_event
-        callbacks = config.get("callbacks")
-        if callbacks:
-            await adispatch_custom_event(event_name, data, callbacks=callbacks)
+        await adispatch_custom_event(event_name, data, config=config)
     except Exception:
         # 事件发送失败不应中断主流程
         pass