diff --git a/partnerapi/kiotviet/model_req.go b/partnerapi/kiotviet/model_req.go
index e933183..1520e89 100644
--- a/partnerapi/kiotviet/model_req.go
+++ b/partnerapi/kiotviet/model_req.go
@@ -38,9 +38,9 @@ type UnregisterWebhookReq struct {
 }
 
 type WebhookBody struct {
-	ID            string              `json:"Id"`
-	Attempt       int                 `json:"Attempt"`
-	Notifications WebhookNotification `json:"Notifications"`
+	ID            string                `json:"Id"`
+	Attempt       int                   `json:"Attempt"`
+	Notifications []WebhookNotification `json:"Notifications"`
 }
 
 type WebhookNotification struct {