diff --git a/apps/hrm/tasks.py b/apps/hrm/tasks.py
index 27f9ce64..9a1744ae 100755
--- a/apps/hrm/tasks.py
+++ b/apps/hrm/tasks.py
@@ -130,6 +130,6 @@ def delete_face_pkl(epId):
 def update_global_face_pd():
     import pandas as pd
     facedata = Employee.objects.filter(facenet512_data__isnull=False, 
-                    user__is_active=True).values_list('id', 'facenet512_data', flat=True)
+                    user__is_active=True).values_list('id', 'facenet512_data')
     cache.set('global_face_data', facedata, timeout=None)
     global_face_df = pd.DataFrame(list(facedata), columns=["identity", "Facenet512_representation"])