diff --git a/kallithea/model/db.py b/kallithea/model/db.py
--- a/kallithea/model/db.py
+++ b/kallithea/model/db.py
@@ -290,8 +290,7 @@ class Setting(Base, BaseModel):
                 .filter(cls.app_settings_name.startswith('auth_')).all()
         fd = {}
         for row in ret:
-            fd.update({row.app_settings_name: row.app_settings_value})
-
+            fd[row.app_settings_name] = row.app_settings_value
         return fd
 
     @classmethod