diff --git a/app/build.gradle b/app/build.gradle
index be6412e..8f21185 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -6,11 +6,11 @@ plugins {
 
 android {
     namespace "com.github.gotify"
-    compileSdk 33
+    compileSdk 34
     defaultConfig {
         applicationId "com.github.gotify"
         minSdk 23
-        targetSdk 33
+        targetSdk 34
         versionCode 30
         versionName "2.7.1"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
diff --git a/app/src/main/kotlin/com/github/gotify/messages/MessagesActivity.kt b/app/src/main/kotlin/com/github/gotify/messages/MessagesActivity.kt
index 7ea5933..f2f95f8 100644
--- a/app/src/main/kotlin/com/github/gotify/messages/MessagesActivity.kt
+++ b/app/src/main/kotlin/com/github/gotify/messages/MessagesActivity.kt
@@ -9,6 +9,7 @@ import android.graphics.Canvas
 import android.graphics.drawable.ColorDrawable
 import android.graphics.drawable.Drawable
 import android.net.Uri
+import android.os.Build
 import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
@@ -310,7 +311,11 @@ internal class MessagesActivity :
         nManager.cancelAll()
         val filter = IntentFilter()
         filter.addAction(WebSocketService.NEW_MESSAGE_BROADCAST)
-        registerReceiver(receiver, filter)
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            registerReceiver(receiver, filter, RECEIVER_EXPORTED)
+        } else {
+            registerReceiver(receiver, filter)
+        }
         launchCoroutine {
             updateMissedMessages(viewModel.messages.getLastReceivedMessage())
         }