diff --git a/gate_api/models/contract.py b/gate_api/models/contract.py
index ebd2f2c..6cf8f7d 100644
--- a/gate_api/models/contract.py
+++ b/gate_api/models/contract.py
@@ -53,15 +53,15 @@ class Contract(object):
         'risk_limit_base': 'str',
         'risk_limit_step': 'str',
         'risk_limit_max': 'str',
-        'order_size_min': 'int',
-        'order_size_max': 'int',
+        'order_size_min': 'str',
+        'order_size_max': 'str',
         'order_price_deviate': 'str',
         'ref_discount_rate': 'str',
         'ref_rebate_rate': 'str',
         'orderbook_id': 'int',
         'trade_id': 'int',
-        'trade_size': 'int',
-        'position_size': 'int',
+        'trade_size': 'str',
+        'position_size': 'str',
         'config_change_time': 'float',
         'in_delisting': 'bool',
         'orders_limit': 'int',
diff --git a/gate_api/models/futures_order.py b/gate_api/models/futures_order.py
index 1ae0561..a080246 100644
--- a/gate_api/models/futures_order.py
+++ b/gate_api/models/futures_order.py
@@ -40,8 +40,8 @@ class FuturesOrder(object):
         'finish_as': 'str',
         'status': 'str',
         'contract': 'str',
-        'size': 'int',
-        'iceberg': 'int',
+        'size': 'str',
+        'iceberg': 'str',
         'price': 'str',
         'close': 'bool',
         'is_close': 'bool',
@@ -49,7 +49,7 @@ class FuturesOrder(object):
         'is_reduce_only': 'bool',
         'is_liq': 'bool',
         'tif': 'str',
-        'left': 'int',
+        'left': 'str',
         'fill_price': 'str',
         'text': 'str',
         'tkfr': 'str',
@@ -815,7 +815,7 @@ def stp_act(self, stp_act):
         :param stp_act: The stp_act of this FuturesOrder.  # noqa: E501
         :type: str
         """
-        allowed_values = ["co", "cn", "cb"]  # noqa: E501
+        allowed_values = ["co", "cn", "cb", "-"]  # noqa: E501
         if self.local_vars_configuration.client_side_validation and stp_act not in allowed_values:  # noqa: E501
             raise ValueError(
                 "Invalid value for `stp_act` ({0}), must be one of {1}".format(stp_act, allowed_values)  # noqa: E501
diff --git a/gate_api/models/ledger_record.py b/gate_api/models/ledger_record.py
index 66cceaa..90304cb 100644
--- a/gate_api/models/ledger_record.py
+++ b/gate_api/models/ledger_record.py
@@ -336,6 +336,7 @@ def status(self, status):
             "PEND",
             "DMOVE",
             "SPLITPEND",
+            "TRACK"
         ]  # noqa: E501
         if self.local_vars_configuration.client_side_validation and status not in allowed_values:  # noqa: E501
             raise ValueError(
diff --git a/gate_api/models/position.py b/gate_api/models/position.py
index 39f6f69..447e987 100644
--- a/gate_api/models/position.py
+++ b/gate_api/models/position.py
@@ -35,7 +35,7 @@ class Position(object):
     openapi_types = {
         'user': 'int',
         'contract': 'str',
-        'size': 'int',
+        'size': 'str',
         'leverage': 'str',
         'risk_limit': 'str',
         'leverage_max': 'str',