diff --git a/.codegen.json b/.codegen.json
index a7fb7d39a..2d9c45eb5 100644
--- a/.codegen.json
+++ b/.codegen.json
@@ -1 +1 @@
-{ "engineHash": "35c5d34", "specHash": "e7ce024", "version": "4.1.0" }
+{ "engineHash": "49f3695", "specHash": "7e4908e", "version": "4.1.0" }
diff --git a/box_sdk_gen/schemas/__init__.py b/box_sdk_gen/schemas/__init__.py
index 1306426d7..641892bf7 100644
--- a/box_sdk_gen/schemas/__init__.py
+++ b/box_sdk_gen/schemas/__init__.py
@@ -274,12 +274,14 @@
 
 from box_sdk_gen.schemas.sign_request_signer_input import *
 
-from box_sdk_gen.schemas.sign_request_signer import *
-
 from box_sdk_gen.schemas.sign_request_base import *
 
 from box_sdk_gen.schemas.sign_request_create_request import *
 
+from box_sdk_gen.schemas.sign_request_signer_attachment import *
+
+from box_sdk_gen.schemas.sign_request_signer import *
+
 from box_sdk_gen.schemas.sign_request import *
 
 from box_sdk_gen.schemas.sign_requests import *
diff --git a/box_sdk_gen/schemas/sign_request.py b/box_sdk_gen/schemas/sign_request.py
index 16d904d1c..d07c8ec41 100644
--- a/box_sdk_gen/schemas/sign_request.py
+++ b/box_sdk_gen/schemas/sign_request.py
@@ -79,6 +79,9 @@ def __init__(
         auto_expire_at: Optional[DateTime] = None,
         parent_folder: Optional[FolderMini] = None,
         collaborator_level: Optional[str] = None,
+        short_id: Optional[str] = None,
+        created_at: Optional[DateTime] = None,
+        finished_at: Optional[DateTime] = None,
         sender_email: Optional[str] = None,
         sender_id: Optional[int] = None,
         is_document_preparation_needed: Optional[bool] = None,
@@ -124,6 +127,12 @@ def __init__(
                 :type auto_expire_at: Optional[DateTime], optional
                 :param collaborator_level: The collaborator level of the user to the sign request. Values can include "owner", "editor", and "viewer"., defaults to None
                 :type collaborator_level: Optional[str], optional
+                :param short_id: Short identifier for the sign request., defaults to None
+                :type short_id: Optional[str], optional
+                :param created_at: Timestamp marking when the sign request was created., defaults to None
+                :type created_at: Optional[DateTime], optional
+                :param finished_at: Timestamp indicating when all signing actions completed., defaults to None
+                :type finished_at: Optional[DateTime], optional
                 :param sender_email: The email address of the sender of the sign request., defaults to None
                 :type sender_email: Optional[str], optional
                 :param sender_id: The user ID of the sender of the sign request., defaults to None
@@ -183,5 +192,8 @@ def __init__(
         self.auto_expire_at = auto_expire_at
         self.parent_folder = parent_folder
         self.collaborator_level = collaborator_level
+        self.short_id = short_id
+        self.created_at = created_at
+        self.finished_at = finished_at
         self.sender_email = sender_email
         self.sender_id = sender_id
diff --git a/box_sdk_gen/schemas/sign_request_signer.py b/box_sdk_gen/schemas/sign_request_signer.py
index e9575f17e..21e927bf9 100644
--- a/box_sdk_gen/schemas/sign_request_signer.py
+++ b/box_sdk_gen/schemas/sign_request_signer.py
@@ -14,6 +14,10 @@
 
 from box_sdk_gen.schemas.sign_request_signer_input import SignRequestSignerInput
 
+from box_sdk_gen.schemas.sign_request_signer_attachment import (
+    SignRequestSignerAttachment,
+)
+
 from box_sdk_gen.box.errors import BoxSDKError
 
 from box_sdk_gen.internal.utils import DateTime
@@ -58,6 +62,7 @@ def __init__(
         inputs: Optional[List[SignRequestSignerInput]] = None,
         embed_url: Optional[str] = None,
         iframeable_embed_url: Optional[str] = None,
+        attachments: Optional[List[SignRequestSignerAttachment]] = None,
         email: Optional[str] = None,
         role: Optional[SignRequestCreateSignerRoleField] = None,
         is_in_person: Optional[bool] = None,
@@ -86,6 +91,8 @@ def __init__(
         parameter was passed in the
         `create Box Sign request` call., defaults to None
                 :type iframeable_embed_url: Optional[str], optional
+                :param attachments: Attachments that the signer uploaded., defaults to None
+                :type attachments: Optional[List[SignRequestSignerAttachment]], optional
                 :param email: Email address of the signer.
         The email address of the signer is required when making signature requests, except when using templates that are configured to include emails., defaults to None
                 :type email: Optional[str], optional
@@ -157,3 +164,4 @@ def __init__(
         self.inputs = inputs
         self.embed_url = embed_url
         self.iframeable_embed_url = iframeable_embed_url
+        self.attachments = attachments
diff --git a/box_sdk_gen/schemas/sign_request_signer_attachment.py b/box_sdk_gen/schemas/sign_request_signer_attachment.py
new file mode 100644
index 000000000..d1ba83bea
--- /dev/null
+++ b/box_sdk_gen/schemas/sign_request_signer_attachment.py
@@ -0,0 +1,20 @@
+from typing import Optional
+
+from box_sdk_gen.internal.base_object import BaseObject
+
+from box_sdk_gen.box.errors import BoxSDKError
+
+
+class SignRequestSignerAttachment(BaseObject):
+    def __init__(
+        self, *, id: Optional[str] = None, name: Optional[str] = None, **kwargs
+    ):
+        """
+        :param id: Identifier of the attachment file., defaults to None
+        :type id: Optional[str], optional
+        :param name: Display name of the attachment file., defaults to None
+        :type name: Optional[str], optional
+        """
+        super().__init__(**kwargs)
+        self.id = id
+        self.name = name