diff --git a/longtasks/longtasks.py b/longtasks/longtasks.py
index 4c0a8b7..d017512 100644
--- a/longtasks/longtasks.py
+++ b/longtasks/longtasks.py
@@ -146,7 +146,6 @@ class LongTasks:
 				task_obj = await self.get_redis_task(task_id)
 				payload = task_obj["payload"]
 				debug(f'task={task_obj}')
-				payload = json.loads(payload)
 
 				# 1) 更新 task hash 为 running（这一步很重要：客户端读取到状态）
 				started_at = time.time()