diff --git a/TMessagesProj/src/main/java/org/telegram/messenger/ApplicationLoader.java b/TMessagesProj/src/main/java/org/telegram/messenger/ApplicationLoader.java
index 741fd82334..853e3662a1 100644
--- a/TMessagesProj/src/main/java/org/telegram/messenger/ApplicationLoader.java
+++ b/TMessagesProj/src/main/java/org/telegram/messenger/ApplicationLoader.java
@@ -292,7 +292,7 @@ public static void startPushService() {
             // Telegram-FOSS: unconditionally enable push service
             AlarmManager am = (AlarmManager) applicationContext.getSystemService(Context.ALARM_SERVICE);
             Intent i = new Intent(applicationContext, NotificationsService.class);
-            pendingIntent = PendingIntent.getBroadcast(applicationContext, 0, i, 0);
+            pendingIntent = PendingIntent.getBroadcast(applicationContext, 0, i, PendingIntent.FLAG_MUTABLE);
 
             am.cancel(pendingIntent);
             am.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(), 60000, pendingIntent);
diff --git a/TMessagesProj/src/main/java/org/telegram/messenger/NotificationsService.java b/TMessagesProj/src/main/java/org/telegram/messenger/NotificationsService.java
index 3744683a01..b8841ea9d8 100644
--- a/TMessagesProj/src/main/java/org/telegram/messenger/NotificationsService.java
+++ b/TMessagesProj/src/main/java/org/telegram/messenger/NotificationsService.java
@@ -34,7 +34,7 @@ public void onCreate() {
             notificationManager.createNotificationChannel(channel);
             Intent explainIntent = new Intent("android.intent.action.VIEW");
             explainIntent.setData(Uri.parse("https://github.com/Telegram-FOSS-Team/Telegram-FOSS/blob/master/Notifications.md"));
-            PendingIntent explainPendingIntent = PendingIntent.getActivity(this, 0, explainIntent, 0);
+            PendingIntent explainPendingIntent = PendingIntent.getActivity(this, 0, explainIntent, PendingIntent.FLAG_MUTABLE);
             Notification notification = new NotificationCompat.Builder(this, CHANNEL_ID)
                     .setContentIntent(explainPendingIntent)
                     .setShowWhen(false)