diff --git a/pyproject.toml b/pyproject.toml
index ffc892c..654fa27 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "aftership-tracking-sdk"
-version = "7.0.0"
+version = "7.1.0"
 description = "The official AfterShip Tracking Python API library"
 authors = ["AfterShip <support@aftership.com>"]
 license = "MIT"
diff --git a/tracking/__init__.py b/tracking/__init__.py
index 92fc688..262c831 100644
--- a/tracking/__init__.py
+++ b/tracking/__init__.py
@@ -11,4 +11,4 @@
 from . import exceptions
 from .models import *
 
-__version__ = "7.0.0"
+__version__ = "7.1.0"
diff --git a/tracking/client.py b/tracking/client.py
index 8a74ef8..3060e05 100644
--- a/tracking/client.py
+++ b/tracking/client.py
@@ -8,7 +8,7 @@
 from typing import Optional
 
 from .configuration import Configuration
-from .api import TrackingApi, CourierApi, CourierConnectionApi, EstimatedDeliveryDateApi
+from .api import CourierApi, CourierConnectionApi, EstimatedDeliveryDateApi, TrackingApi
 
 
 class Client:
@@ -16,7 +16,7 @@ def __init__(self, configuration: Optional[Configuration] = None) -> None:
         if configuration is None:
             configuration = Configuration()
 
-        self.tracking = TrackingApi(configuration)
         self.courier = CourierApi(configuration)
         self.courier_connection = CourierConnectionApi(configuration)
         self.estimated_delivery_date = EstimatedDeliveryDateApi(configuration)
+        self.tracking = TrackingApi(configuration)
diff --git a/tracking/models/create_tracking_request.py b/tracking/models/create_tracking_request.py
index 271035e..1af5f92 100644
--- a/tracking/models/create_tracking_request.py
+++ b/tracking/models/create_tracking_request.py
@@ -10,7 +10,6 @@
 from typing import Any, Dict, List, Optional
 from typing_extensions import Self
 
-from tracking.models.slug_group import SlugGroup
 from tracking.models.last_mile_create_tracking_request import LastMileCreateTrackingRequest
 from tracking.models.customers_create_tracking_request import CustomersCreateTrackingRequest
 
@@ -46,7 +45,7 @@ class CreateTrackingRequest(BaseModel):
     destination_postal_code: Optional[str] = None
     destination_raw_location: Optional[str] = None
     note: Optional[str] = None
-    slug_group: Optional[SlugGroup] = None
+    slug_group: Optional[str] = None
     order_date: Optional[str] = None
     order_number: Optional[str] = None
     shipment_type: Optional[str] = None
diff --git a/tracking/request.py b/tracking/request.py
index 1abafac..6de076d 100644
--- a/tracking/request.py
+++ b/tracking/request.py
@@ -17,7 +17,7 @@
 from tracking.response import parse_response
 from tracking.exceptions import ApiException, TimedOutError, BadRequestError, ErrorCodeEnum
 
-_default_user_agent = "aftership-sdk-python/7.0.0 (https://www.aftership.com) httpx/0.19.0"
+_default_user_agent = "aftership-sdk-python/7.1.0 (https://www.aftership.com) httpx/0.19.0"
 
 
 def validate_params(func):