diff --git a/apps/application/swagger_api/chat_api.py b/apps/application/swagger_api/chat_api.py
index 54b5678f7..f27a19c20 100644
--- a/apps/application/swagger_api/chat_api.py
+++ b/apps/application/swagger_api/chat_api.py
@@ -326,11 +326,6 @@ class ChatApi(ApiMixin):
                                   type=openapi.TYPE_STRING,
                                   required=True,
                                   description=_('Application ID')),
-                openapi.Parameter(name='history_day',
-                                  in_=openapi.IN_QUERY,
-                                  type=openapi.TYPE_NUMBER,
-                                  required=True,
-                                  description=_('Historical days')),
                 openapi.Parameter(name='abstract', in_=openapi.IN_QUERY, type=openapi.TYPE_STRING, required=False,
                                   description=_("abstract")),
                 openapi.Parameter(name='min_star', in_=openapi.IN_QUERY, type=openapi.TYPE_INTEGER, required=False,