diff --git a/.stats.yml b/.stats.yml
index 140f3b7..ba26506 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,2 +1,2 @@
 configured_endpoints: 87
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/metronome%2Fmetronome-d3b3053680a3912936fdcbfcf0c63090f54c6b20cb044dd493fe9a39d5e7487f.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/metronome%2Fmetronome-d66666074a17e0f47f6b792497270a5770abddb457a98ac8ef95fd33c61680ea.yml
diff --git a/src/resources/contracts/contracts.ts b/src/resources/contracts/contracts.ts
index 63ed5b9..a7b9035 100644
--- a/src/resources/contracts/contracts.ts
+++ b/src/resources/contracts/contracts.ts
@@ -1053,9 +1053,14 @@ export namespace ContractCreateParams {
    * This field's availability is dependent on your client's configuration.
    */
   export interface BillingProviderConfiguration {
-    billing_provider: 'aws_marketplace' | 'azure_marketplace' | 'gcp_marketplace' | 'stripe' | 'netsuite';
+    billing_provider?: 'aws_marketplace' | 'azure_marketplace' | 'gcp_marketplace' | 'stripe' | 'netsuite';
 
-    delivery_method: 'direct_to_billing_provider' | 'aws_sqs' | 'tackle' | 'aws_sns';
+    /**
+     * The Metronome ID of the billing provider configuration
+     */
+    billing_provider_configuration_id?: string;
+
+    delivery_method?: 'direct_to_billing_provider' | 'aws_sqs' | 'tackle' | 'aws_sns';
   }
 
   export interface Commit {
diff --git a/tests/api-resources/contracts/contracts.test.ts b/tests/api-resources/contracts/contracts.test.ts
index fff5dcd..413b952 100644
--- a/tests/api-resources/contracts/contracts.test.ts
+++ b/tests/api-resources/contracts/contracts.test.ts
@@ -29,6 +29,7 @@ describe('resource contracts', () => {
       starting_at: '2020-01-01T00:00:00.000Z',
       billing_provider_configuration: {
         billing_provider: 'aws_marketplace',
+        billing_provider_configuration_id: '182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e',
         delivery_method: 'direct_to_billing_provider',
       },
       commits: [