diff --git a/activitysmith_openapi/api_client.py b/activitysmith_openapi/api_client.py
index 054f3dc..cc56bee 100644
--- a/activitysmith_openapi/api_client.py
+++ b/activitysmith_openapi/api_client.py
@@ -88,7 +88,7 @@ def __init__(
             self.default_headers[header_name] = header_value
         self.cookie = cookie
         # Set default User-Agent.
-        self.user_agent = 'OpenAPI-Generator/1.2.0/python'
+        self.user_agent = 'OpenAPI-Generator/1.2.1/python'
         self.client_side_validation = configuration.client_side_validation
 
     def __enter__(self):
diff --git a/activitysmith_openapi/configuration.py b/activitysmith_openapi/configuration.py
index ac53963..4bde3df 100644
--- a/activitysmith_openapi/configuration.py
+++ b/activitysmith_openapi/configuration.py
@@ -393,7 +393,7 @@ def to_debug_report(self):
                "OS: {env}\n"\
                "Python Version: {pyversion}\n"\
                "Version of the API: 1.0.0\n"\
-               "SDK Package Version: 1.2.0".\
+               "SDK Package Version: 1.2.1".\
                format(env=sys.platform, pyversion=sys.version)
 
     def get_host_settings(self):
diff --git a/activitysmith_openapi/docs/MetricValueUpdateRequest.md b/activitysmith_openapi/docs/MetricValueUpdateRequest.md
index 70290f1..663f4f2 100644
--- a/activitysmith_openapi/docs/MetricValueUpdateRequest.md
+++ b/activitysmith_openapi/docs/MetricValueUpdateRequest.md
@@ -7,7 +7,6 @@ Latest metric value to display in widgets.
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **value** | [**MetricValueUpdateRequestValue**](MetricValueUpdateRequestValue.md) |  | 
-**timestamp** | **datetime** | Optional ISO timestamp for when the metric value was measured. Defaults to the server receive time. | [optional] 
 
 ## Example
 
diff --git a/activitysmith_openapi/docs/MetricsApi.md b/activitysmith_openapi/docs/MetricsApi.md
index 81cf084..3a31509 100644
--- a/activitysmith_openapi/docs/MetricsApi.md
+++ b/activitysmith_openapi/docs/MetricsApi.md
@@ -85,7 +85,7 @@ Name | Type | Description  | Notes
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
 **200** | Metric value updated |  -  |
-**400** | Bad request (invalid key, value, or timestamp) |  -  |
+**400** | Bad request (invalid key or value) |  -  |
 **404** | Metric not found |  -  |
 **429** | Rate limit exceeded |  -  |
 
diff --git a/activitysmith_openapi/models/metric_value_update_request.py b/activitysmith_openapi/models/metric_value_update_request.py
index d90f96b..04a7510 100644
--- a/activitysmith_openapi/models/metric_value_update_request.py
+++ b/activitysmith_openapi/models/metric_value_update_request.py
@@ -17,9 +17,8 @@
 import re  # noqa: F401
 import json
 
-from datetime import datetime
-from pydantic import BaseModel, ConfigDict, Field
-from typing import Any, ClassVar, Dict, List, Optional
+from pydantic import BaseModel, ConfigDict
+from typing import Any, ClassVar, Dict, List
 from activitysmith_openapi.models.metric_value_update_request_value import MetricValueUpdateRequestValue
 from typing import Optional, Set
 from typing_extensions import Self
@@ -29,9 +28,8 @@ class MetricValueUpdateRequest(BaseModel):
     Latest metric value to display in widgets.
     """ # noqa: E501
     value: MetricValueUpdateRequestValue
-    timestamp: Optional[datetime] = Field(default=None, description="Optional ISO timestamp for when the metric value was measured. Defaults to the server receive time.")
     additional_properties: Dict[str, Any] = {}
-    __properties: ClassVar[List[str]] = ["value", "timestamp"]
+    __properties: ClassVar[List[str]] = ["value"]
 
     model_config = ConfigDict(
         populate_by_name=True,
@@ -94,8 +92,7 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
             return cls.model_validate(obj)
 
         _obj = cls.model_validate({
-            "value": MetricValueUpdateRequestValue.from_dict(obj["value"]) if obj.get("value") is not None else None,
-            "timestamp": obj.get("timestamp")
+            "value": MetricValueUpdateRequestValue.from_dict(obj["value"]) if obj.get("value") is not None else None
         })
         # store additional fields in additional_properties
         for _key in obj.keys():
diff --git a/activitysmith_openapi/test/test_metric_value_update_request.py b/activitysmith_openapi/test/test_metric_value_update_request.py
index 429e2fd..0877a7d 100644
--- a/activitysmith_openapi/test/test_metric_value_update_request.py
+++ b/activitysmith_openapi/test/test_metric_value_update_request.py
@@ -35,8 +35,7 @@ def make_instance(self, include_optional) -> MetricValueUpdateRequest:
         model = MetricValueUpdateRequest()
         if include_optional:
             return MetricValueUpdateRequest(
-                value = None,
-                timestamp = datetime.datetime.strptime('2013-10-20 19:20:30.00', '%Y-%m-%d %H:%M:%S.%f')
+                value = None
             )
         else:
             return MetricValueUpdateRequest(