diff --git a/tests/test_user_management.py b/tests/test_user_management.py
index 0aa5463d..eab3dee9 100644
--- a/tests/test_user_management.py
+++ b/tests/test_user_management.py
@@ -414,6 +414,7 @@ def test_get_user(self, mock_user, capture_and_mock_http_client_request):
         assert user.id == "user_01H7ZGXFP5C6BBQY6Z7277ZCT0"
         assert user.profile_picture_url == "https://example.com/profile-picture.jpg"
         assert user.last_sign_in_at == "2021-06-25T19:07:33.155Z"
+        assert user.locale == "en-US"
 
     def test_get_user_by_external_id(
         self, mock_user, capture_and_mock_http_client_request
@@ -434,6 +435,7 @@ def test_get_user_by_external_id(
         assert user.id == "user_01H7ZGXFP5C6BBQY6Z7277ZCT0"
         assert user.profile_picture_url == "https://example.com/profile-picture.jpg"
         assert user.last_sign_in_at == "2021-06-25T19:07:33.155Z"
+        assert user.locale == "en-US"
         assert user.metadata == mock_user["metadata"]
 
     def test_list_users_auto_pagination(
@@ -492,6 +494,29 @@ def test_update_user(self, mock_user, capture_and_mock_http_client_request):
             "password": "password",
         }
 
+    def test_update_user_with_locale(
+        self, mock_user, capture_and_mock_http_client_request
+    ):
+        request_kwargs = capture_and_mock_http_client_request(
+            self.http_client, mock_user, 200
+        )
+
+        params = {
+            "first_name": "Marcelina",
+            "locale": "fr-FR",
+        }
+        user = syncify(
+            self.user_management.update_user(
+                user_id="user_01H7ZGXFP5C6BBQY6Z7277ZCT0", **params
+            )
+        )
+
+        assert request_kwargs["url"].endswith("users/user_01H7ZGXFP5C6BBQY6Z7277ZCT0")
+        assert user.id == "user_01H7ZGXFP5C6BBQY6Z7277ZCT0"
+        assert request_kwargs["method"] == "put"
+        assert request_kwargs["json"]["first_name"] == "Marcelina"
+        assert request_kwargs["json"]["locale"] == "fr-FR"
+
     def test_delete_user(self, capture_and_mock_http_client_request):
         request_kwargs = capture_and_mock_http_client_request(
             http_client=self.http_client, status_code=204
diff --git a/tests/utils/fixtures/mock_user.py b/tests/utils/fixtures/mock_user.py
index 82bbfcfc..b8537832 100644
--- a/tests/utils/fixtures/mock_user.py
+++ b/tests/utils/fixtures/mock_user.py
@@ -15,6 +15,7 @@ def __init__(self, id):
             email_verified=False,
             profile_picture_url="https://example.com/profile-picture.jpg",
             last_sign_in_at="2021-06-25T19:07:33.155Z",
+            locale="en-US",
             created_at=now,
             updated_at=now,
             metadata={"key": "value"},
diff --git a/workos/types/user_management/user.py b/workos/types/user_management/user.py
index 2bd72ae3..1c8cf8a3 100644
--- a/workos/types/user_management/user.py
+++ b/workos/types/user_management/user.py
@@ -15,6 +15,7 @@ class User(WorkOSModel):
     email_verified: bool
     profile_picture_url: Optional[str] = None
     last_sign_in_at: Optional[str] = None
+    locale: Optional[str] = None
     created_at: str
     updated_at: str
     external_id: Optional[str] = None
diff --git a/workos/user_management.py b/workos/user_management.py
index d06b90c7..e5558726 100644
--- a/workos/user_management.py
+++ b/workos/user_management.py
@@ -225,6 +225,7 @@ def update_user(
         password_hash_type: Optional[PasswordHashType] = None,
         external_id: Optional[str] = None,
         metadata: Optional[Metadata] = None,
+        locale: Optional[str] = None,
     ) -> SyncOrAsync[User]:
         """Update user attributes.
 
@@ -237,6 +238,7 @@ def update_user(
             password (str): The password to set for the user. (Optional)
             password_hash (str): The hashed password to set for the user, used when migrating from another user store. Mutually exclusive with password. (Optional)
             password_hash_type (str): The algorithm originally used to hash the password, used when providing a password_hash. Valid values are 'bcrypt', `firebase-scrypt`, and `ssha`. (Optional)
+            locale (str): The user's locale. (Optional)
 
         Returns:
             User: Updated User response from WorkOS.
@@ -1002,6 +1004,7 @@ def update_user(
         password_hash_type: Optional[PasswordHashType] = None,
         external_id: Optional[str] = None,
         metadata: Optional[Metadata] = None,
+        locale: Optional[str] = None,
     ) -> User:
         json = {
             "first_name": first_name,
@@ -1013,6 +1016,7 @@ def update_user(
             "password_hash_type": password_hash_type,
             "external_id": external_id,
             "metadata": metadata,
+            "locale": locale,
         }
 
         response = self._http_client.request(
@@ -1688,6 +1692,7 @@ async def update_user(
         password_hash_type: Optional[PasswordHashType] = None,
         external_id: Optional[str] = None,
         metadata: Optional[Metadata] = None,
+        locale: Optional[str] = None,
     ) -> User:
         json = {
             "first_name": first_name,
@@ -1699,6 +1704,7 @@ async def update_user(
             "password_hash_type": password_hash_type,
             "external_id": external_id,
             "metadata": metadata,
+            "locale": locale,
         }
 
         response = await self._http_client.request(