diff --git a/api/@ohos.notificationManager.d.ts b/api/@ohos.notificationManager.d.ts
index 8761db8051e0deb0a64c2bfe3f1fc43ed068ea5a..eae77ed19eb1ca1ff3c13d0a07192848951973fa 100644
--- a/api/@ohos.notificationManager.d.ts
+++ b/api/@ohos.notificationManager.d.ts
@@ -1537,7 +1537,8 @@ declare namespace notificationManager {
    * @throws { BusinessError } 17700001 - The specified bundle name was not found.
    * @syscap SystemCapability.Notification.Notification
    * @systemapi
-   * @since 18
+   * @since arkts {'1.1':'18', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getSlotByBundle(bundle: BundleOption, slotType: SlotType): Promise<NotificationSlot>;