diff --git a/api/@ohos.account.osAccount.d.ts b/api/@ohos.account.osAccount.d.ts
index 33e596ce3d40b283359e814b5d906c4da2400fd3..f4064a14200bee03e18408ce4a9eebe502cde092 100644
--- a/api/@ohos.account.osAccount.d.ts
+++ b/api/@ohos.account.osAccount.d.ts
@@ -567,6 +567,7 @@ declare namespace osAccount {
      * @name UserAuth
      * @since 8
      * @syscap SystemCapability.Account.OsAccount
+     * @systemapi Hide this for inner system use.
      */
     class UserAuth {
         /**
@@ -670,6 +671,7 @@ declare namespace osAccount {
      * @name PINAuth
      * @since 8
      * @syscap SystemCapability.Account.OsAccount
+     * @systemapi Hide this for inner system use.
      */
     class PINAuth {
         /**
@@ -706,6 +708,7 @@ declare namespace osAccount {
      * @name UserIdentityManager
      * @since 8
      * @syscap SystemCapability.Account.OsAccount
+     * @systemapi Hide this for inner system use.
      */
     class UserIdentityManager {
         /**