diff --git a/dropbox/files.py b/dropbox/files.py
index cd9a55d..566b919 100644
--- a/dropbox/files.py
+++ b/dropbox/files.py
@@ -12198,6 +12198,8 @@ class WriteError(bb.Union):
         The destination team folder has reached its storage limit.
     :ivar WriteError.member_folder_insufficient_space:
         The user's member folder has reached its storage limit.
+    :ivar WriteError.upload_traffic_limit_reached:
+        The user has reached their monthly upload traffic limit.
     """
 
     _catch_all = "other"
@@ -12220,6 +12222,8 @@ class WriteError(bb.Union):
     # Attribute is overwritten below the class definition
     member_folder_insufficient_space = None
     # Attribute is overwritten below the class definition
+    upload_traffic_limit_reached = None
+    # Attribute is overwritten below the class definition
     other = None
 
     @classmethod
@@ -12332,6 +12336,14 @@ def is_member_folder_insufficient_space(self):
         """
         return self._tag == "member_folder_insufficient_space"
 
+    def is_upload_traffic_limit_reached(self):
+        """
+        Check if the union tag is ``upload_traffic_limit_reached``.
+
+        :rtype: bool
+        """
+        return self._tag == "upload_traffic_limit_reached"
+
     def is_other(self):
         """
         Check if the union tag is ``other``.
@@ -15246,6 +15258,7 @@ def _process_custom_annotations(self, annotation_type, field_path, processor):
 WriteError._access_restricted_validator = bv.Void()
 WriteError._team_folder_insufficient_space_validator = bv.Void()
 WriteError._member_folder_insufficient_space_validator = bv.Void()
+WriteError._upload_traffic_limit_reached_validator = bv.Void()
 WriteError._other_validator = bv.Void()
 WriteError._tagmap = {
     "malformed_path": WriteError._malformed_path_validator,
@@ -15259,6 +15272,7 @@ def _process_custom_annotations(self, annotation_type, field_path, processor):
     "access_restricted": WriteError._access_restricted_validator,
     "team_folder_insufficient_space": WriteError._team_folder_insufficient_space_validator,
     "member_folder_insufficient_space": WriteError._member_folder_insufficient_space_validator,
+    "upload_traffic_limit_reached": WriteError._upload_traffic_limit_reached_validator,
     "other": WriteError._other_validator,
 }
 
@@ -15271,6 +15285,7 @@ def _process_custom_annotations(self, annotation_type, field_path, processor):
 WriteError.access_restricted = WriteError("access_restricted")
 WriteError.team_folder_insufficient_space = WriteError("team_folder_insufficient_space")
 WriteError.member_folder_insufficient_space = WriteError("member_folder_insufficient_space")
+WriteError.upload_traffic_limit_reached = WriteError("upload_traffic_limit_reached")
 WriteError.other = WriteError("other")
 
 WriteMode._add_validator = bv.Void()
diff --git a/spec b/spec
index 4764f33..22a3058 160000
--- a/spec
+++ b/spec
@@ -1 +1 @@
-Subproject commit 4764f3379d6eb252c8180e36b942f8d8e7874e44
+Subproject commit 22a3058f8c5594956fcded8d120700475c2ec9d7