diff --git a/.changeset/loud-rules-rescue.md b/.changeset/loud-rules-rescue.md
new file mode 100644
index 00000000000..3e2c27c7025
--- /dev/null
+++ b/.changeset/loud-rules-rescue.md
@@ -0,0 +1,5 @@
+---
+'@clerk/backend': minor
+---
+
+Add missing payer field to BillingSubscriptionItemWebhookEventJSON
diff --git a/packages/backend/src/api/resources/JSON.ts b/packages/backend/src/api/resources/JSON.ts
index fabf0e5ec28..587a86b79c5 100644
--- a/packages/backend/src/api/resources/JSON.ts
+++ b/packages/backend/src/api/resources/JSON.ts
@@ -936,6 +936,7 @@ export interface BillingSubscriptionItemWebhookEventJSON extends ClerkResourceJS
     publicly_visible: boolean;
   } | null;
   plan_id?: string | null;
+  payer?: BillingPayerJSON;
 }
 
 /**