diff --git a/README.md b/README.md
index d4dd845..8ed000f 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # Messente API Library
 
 - Messente API version: 2.0.0
-- Python package version: 1.4.2
+- Python package version: 1.5.0
 
 [Messente](https://messente.com) is a global provider of messaging and user verification services.  * Send and receive SMS, Viber, WhatsApp and Telegram messages. * Manage contacts and groups. * Fetch detailed info about phone numbers. * Blacklist phone numbers to make sure you're not sending any unwanted messages.  Messente builds [tools](https://messente.com/documentation) to help organizations connect their services to people anywhere in the world.
 
diff --git a/docs/DeliveryReportApi.md b/docs/DeliveryReportApi.md
index 082461b..b0f8374 100644
--- a/docs/DeliveryReportApi.md
+++ b/docs/DeliveryReportApi.md
@@ -75,6 +75,7 @@ Name | Type | Description  | Notes
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
 **200** | Delivery report success |  -  |
+**401** | Unauthorized |  -  |
 **404** | If no such message exists or you do not have access to the particular message |  -  |
 
 [[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
diff --git a/docs/OmnimessageApi.md b/docs/OmnimessageApi.md
index 3bbe348..2663f14 100644
--- a/docs/OmnimessageApi.md
+++ b/docs/OmnimessageApi.md
@@ -76,6 +76,7 @@ Name | Type | Description  | Notes
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
 **202** | Scheduled omnimessage successfully cancelled |  -  |
+**401** | Unauthorized |  -  |
 **404** | If the omnimessage has already been sent or no such message exists |  -  |
 
 [[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
@@ -149,6 +150,7 @@ Name | Type | Description  | Notes
 |-------------|-------------|------------------|
 **201** | Omnimessage success response |  -  |
 **400** | Invalid input |  -  |
+**401** | Unauthorized |  -  |
 
 [[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
 
diff --git a/messente_api/__init__.py b/messente_api/__init__.py
index 97b0b2c..ccdb6fd 100644
--- a/messente_api/__init__.py
+++ b/messente_api/__init__.py
@@ -15,7 +15,7 @@
 
 from __future__ import absolute_import
 
-__version__ = "1.4.2"
+__version__ = "1.5.0"
 
 # import apis into sdk package
 from messente_api.api.blacklist_api import BlacklistApi
diff --git a/messente_api/api/delivery_report_api.py b/messente_api/api/delivery_report_api.py
index 0b9c430..a9ab653 100644
--- a/messente_api/api/delivery_report_api.py
+++ b/messente_api/api/delivery_report_api.py
@@ -151,6 +151,7 @@ def retrieve_delivery_report_with_http_info(self, omnimessage_id, **kwargs):  #
         
         response_types_map = {
             200: "DeliveryReportResponse",
+            401: "ErrorOmnichannel",
             404: "ErrorOmnichannel",
         }
 
diff --git a/messente_api/api/omnimessage_api.py b/messente_api/api/omnimessage_api.py
index 75e86e6..fc8c143 100644
--- a/messente_api/api/omnimessage_api.py
+++ b/messente_api/api/omnimessage_api.py
@@ -151,6 +151,7 @@ def cancel_scheduled_message_with_http_info(self, omnimessage_id, **kwargs):  #
         
         response_types_map = {
             202: "object",
+            401: "ErrorOmnichannel",
             404: "ErrorOmnichannel",
         }
 
@@ -290,6 +291,7 @@ def send_omnimessage_with_http_info(self, omnimessage, **kwargs):  # noqa: E501
         response_types_map = {
             201: "OmniMessageCreateSuccessResponse",
             400: "ErrorOmnichannel",
+            401: "ErrorOmnichannel",
         }
 
         return self.api_client.call_api(
diff --git a/messente_api/api_client.py b/messente_api/api_client.py
index 5412c3d..06d4e23 100644
--- a/messente_api/api_client.py
+++ b/messente_api/api_client.py
@@ -79,7 +79,7 @@ def __init__(self, configuration=None, header_name=None, header_value=None,
             self.default_headers[header_name] = header_value
         self.cookie = cookie
         # Set default User-Agent.
-        self.user_agent = 'OpenAPI-Generator/1.4.2/python'
+        self.user_agent = 'OpenAPI-Generator/1.5.0/python'
         self.client_side_validation = configuration.client_side_validation
 
     def __enter__(self):
diff --git a/messente_api/configuration.py b/messente_api/configuration.py
index a46a1ea..a779efd 100644
--- a/messente_api/configuration.py
+++ b/messente_api/configuration.py
@@ -406,7 +406,7 @@ def to_debug_report(self):
                "OS: {env}\n"\
                "Python Version: {pyversion}\n"\
                "Version of the API: 2.0.0\n"\
-               "SDK Package Version: 1.4.2".\
+               "SDK Package Version: 1.5.0".\
                format(env=sys.platform, pyversion=sys.version)
 
     def get_host_settings(self):
diff --git a/setup.py b/setup.py
index 294d813..ab8e1ad 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@
 from setuptools import setup, find_packages  # noqa: H301
 
 NAME = "messente-api"
-VERSION = "1.4.2"
+VERSION = "1.5.0"
 # To install the library, run the following
 #
 # python setup.py install