diff --git a/apps/mosquito/tasks.py b/apps/mosquito/tasks.py
index fb6ce78..c5c5104 100644
--- a/apps/mosquito/tasks.py
+++ b/apps/mosquito/tasks.py
@@ -128,8 +128,8 @@ def update_latest_statistic():
 @task()
 def update_mosq_device_info():
     """ 更新mosquito的DeviceInfo表"""
-    d1 = D1.objects.values('device_id', flat=True)
-    d2 = DeviceInfo.objects.values('device_id', flat=True)
+    d1 = D1.objects.values_list('device_id', flat=True)
+    d2 = DeviceInfo.objects.values_list('device_id', flat=True)
     s1 = set(d1)
     s2 = set(d2)
     x = s1 - s2