diff --git a/library/src/main/java/com/download/library/DownloadNotifier.java b/library/src/main/java/com/download/library/DownloadNotifier.java
index eb7ecb0..584151d 100644
--- a/library/src/main/java/com/download/library/DownloadNotifier.java
+++ b/library/src/main/java/com/download/library/DownloadNotifier.java
@@ -105,8 +105,12 @@ private static DispatchThread getNotificationUpdateQueue() {
 
     void initBuilder(DownloadTask downloadTask) {
         String title = getTitle(downloadTask);
+        int flags = PendingIntent.FLAG_UPDATE_CURRENT;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            flags |= PendingIntent.FLAG_IMMUTABLE;
+        }
         this.mDownloadTask = downloadTask;
-        mBuilder.setContentIntent(PendingIntent.getActivity(mContext, 200, new Intent(), PendingIntent.FLAG_UPDATE_CURRENT));
+        mBuilder.setContentIntent(PendingIntent.getActivity(mContext, 200, new Intent(), flags));
         mBuilder.setSmallIcon(mDownloadTask.getDownloadIcon());
         mBuilder.setTicker(mContext.getString(R.string.download_trickter));
         mBuilder.setContentTitle(title);
@@ -139,7 +143,11 @@ private String getTitle(DownloadTask downloadTask) {
     private PendingIntent buildCancelContent(Context context, int id, String url) {
         Intent intentCancel = new Intent(Runtime.getInstance().append(context, NotificationCancelReceiver.ACTION));
         intentCancel.putExtra("TAG", url);
-        PendingIntent pendingIntentCancel = PendingIntent.getBroadcast(context, id * 1000, intentCancel, PendingIntent.FLAG_UPDATE_CURRENT);
+        int flags = PendingIntent.FLAG_UPDATE_CURRENT;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            flags |= PendingIntent.FLAG_IMMUTABLE;
+        }
+        PendingIntent pendingIntentCancel = PendingIntent.getBroadcast(context, id * 1000, intentCancel, flags);
         Runtime.getInstance().log(TAG, "buildCancelContent id:" + (id * 1000) + " cancal action:" + Runtime.getInstance().append(context, NotificationCancelReceiver.ACTION));
         return pendingIntentCancel;
     }
@@ -280,10 +288,12 @@ void onDownloadFinished() {
                 public void run() {
                     removeCancelAction();
                     setDelecte(null);
+                    int flags = PendingIntent.FLAG_UPDATE_CURRENT;
+                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                        flags |= PendingIntent.FLAG_IMMUTABLE;
+                    }
                     PendingIntent rightPendIntent = PendingIntent
-                            .getActivity(mContext,
-                                    mNotificationId * 10000, mIntent,
-                                    PendingIntent.FLAG_UPDATE_CURRENT);
+                      .getActivity(mContext, mNotificationId * 10000, mIntent, flags);
                     mBuilder.setSmallIcon(mDownloadTask.getDownloadDoneIcon());
                     mBuilder.setContentText(mContext.getString(R.string.download_click_open));
                     mBuilder.setProgress(100, 100, false);