diff --git a/uPic/Extensions/NotificationExt.swift b/uPic/Extensions/NotificationExt.swift
index b5bcd8b..d3affd3 100644
--- a/uPic/Extensions/NotificationExt.swift
+++ b/uPic/Extensions/NotificationExt.swift
@@ -83,7 +83,7 @@ extension NotificationExt: UNUserNotificationCenterDelegate {
         content.sound = UNNotificationSound.default
         content.userInfo = ["body": info]
         
-        let request = UNNotificationRequest(identifier: "U_PIC_REQUEST",
+        let request = UNNotificationRequest(identifier: "U_PIC_REQUEST_\(String.randomStr(len: 5))",
                                             content: content,
                                             trigger: nil)
         
diff --git a/uPic/Models/Tencent/TencentUploader.swift b/uPic/Models/Tencent/TencentUploader.swift
index 3efb9e5..5a482e6 100644
--- a/uPic/Models/Tencent/TencentUploader.swift
+++ b/uPic/Models/Tencent/TencentUploader.swift
@@ -70,7 +70,7 @@ class TencentUploader: BaseUploader {
         let signKey = qKeyTime.calculateHMACByKey(key: secretKey).toHexString()
         // MARK: 加密 policy
         var policyDict = Dictionary<String, Any>()
-        let conditions = [["bucket": bucket], ["key": key], ["q-sign-time": qKeyTime], ["q-sign-algorithm": qSignAlgorithm], ["q-ak": secretId]]
+        let conditions = [["bucket": bucket], ["key": key]]
         policyDict["conditions"] = conditions
         let policy = TencentUtil.getPolicy(policyDict: policyDict)