diff --git a/openapi/spec3.beta.sdk.json b/openapi/spec3.beta.sdk.json
index 0c1d59a1..2e77a5ed 100644
--- a/openapi/spec3.beta.sdk.json
+++ b/openapi/spec3.beta.sdk.json
@@ -48761,6 +48761,15 @@
       "subscription_details_data": {
         "description": "",
         "properties": {
+          "metadata": {
+            "additionalProperties": {
+              "maxLength": 500,
+              "type": "string"
+            },
+            "description": "Set of [key-value pairs](https://stripe.com/docs/api/metadata) that will reflect the metadata of the subscription at the time of invoice creation. *Note: This attribute is populated only for invoices created on or after June 28, 2023.*",
+            "nullable": true,
+            "type": "object"
+          },
           "pause_collection": {
             "anyOf": [
               {
diff --git a/openapi/spec3.beta.sdk.yaml b/openapi/spec3.beta.sdk.yaml
index c4eca2fd..282656ee 100644
--- a/openapi/spec3.beta.sdk.yaml
+++ b/openapi/spec3.beta.sdk.yaml
@@ -44306,6 +44306,17 @@ components:
     subscription_details_data:
       description: ''
       properties:
+        metadata:
+          additionalProperties:
+            maxLength: 500
+            type: string
+          description: >-
+            Set of [key-value pairs](https://stripe.com/docs/api/metadata) that
+            will reflect the metadata of the subscription at the time of invoice
+            creation. *Note: This attribute is populated only for invoices
+            created on or after June 28, 2023.*
+          nullable: true
+          type: object
         pause_collection:
           anyOf:
             - $ref: '#/components/schemas/invoices_resource_pause_collection'