diff --git a/generated/model.py b/generated/model.py
index 24a7d303..910ad20a 100644
--- a/generated/model.py
+++ b/generated/model.py
@@ -87,4 +87,4 @@ class PaginatedImageQueryList(BaseModel):
     count: Optional[int] = Field(None, example=123)
     next: Optional[AnyUrl] = Field(None, example="http://api.example.org/accounts/?page=4")
     previous: Optional[AnyUrl] = Field(None, example="http://api.example.org/accounts/?page=2")
-    results: Optional[List[ImageQuery]] = None
+    results: Optional[List[ImageQuery]] = None
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index ac492e15..fdb4d9d7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ packages = [
     {include = "**/*.py", from = "src"},
 ]
 readme = "README.md"
-version = "0.13.0"
+version = "0.13.1"
 
 [tool.poetry.dependencies]
 # For certifi, use ">=" instead of "^" since it upgrades its "major version" every year, not really following semver
diff --git a/src/groundlight/internalapi.py b/src/groundlight/internalapi.py
index 69f93168..2e2f95ef 100644
--- a/src/groundlight/internalapi.py
+++ b/src/groundlight/internalapi.py
@@ -4,6 +4,7 @@
 import random
 import time
 import uuid
+from enum import Enum
 from functools import wraps
 from typing import Callable, Dict, Optional, Union
 from urllib.parse import urlsplit, urlunsplit
@@ -155,6 +156,12 @@ def decorated(*args, **kwargs):  # pylint: disable=inconsistent-return-statement
         return decorated
 
 
+# ReviewReasons are reasons a label was created. A review reason is a required field when posting a human label
+# to the API. The only review reason currently supported on the SDK is CUSTOMER_INITIATED.
+class ReviewReason(str, Enum):  # noqa: N801
+    CUSTOMER_INITIATED = "CUSTOMER_INITIATED"
+
+
 class GroundlightApiClient(ApiClient):
     """Subclassing the OpenAPI-generated ApiClient to add a bit of custom functionality.
     Not crazy about using polymorphism, but this is simpler than modifying the moustache
@@ -199,10 +206,7 @@ def _add_label(self, image_query_id: str, label: str) -> dict:
         start_time = time.time()
         url = f"{self.configuration.host}/labels"
 
-        data = {
-            "label": label,
-            "posicheck_id": image_query_id,
-        }
+        data = {"label": label, "posicheck_id": image_query_id, "review_reason": ReviewReason.CUSTOMER_INITIATED}
 
         headers = self._headers()