diff --git a/deepspeed/runtime/config_utils.py b/deepspeed/runtime/config_utils.py
index 54cf813fd..2ae6921c3 100755
--- a/deepspeed/runtime/config_utils.py
+++ b/deepspeed/runtime/config_utils.py
@@ -97,7 +97,7 @@ class DeepSpeedConfigModel(BaseModel):
                     raise e
 
     def _deprecated_fields_check(self):
-        fields = self.model_fields
+        fields = type(self).model_fields
         for field_name, field_info in fields.items():
             if field_info.json_schema_extra and field_info.json_schema_extra.get("deprecated", False):
                 self._process_deprecated_field(field_name)