diff --git a/types/Webhook/WebhookCreateParameters.d.ts b/types/Webhook/WebhookCreateParameters.d.ts
index 88210965..118511a1 100644
--- a/types/Webhook/WebhookCreateParameters.d.ts
+++ b/types/Webhook/WebhookCreateParameters.d.ts
@@ -1,5 +1,5 @@
 export declare interface IWebhookCreateParameters {
   url: string;
   secret?: string;
-  custom_headers?: Record<string, string>;
+  custom_headers?: Array<{ key: string; value: string }>;
 }