diff --git a/app/build.gradle b/app/build.gradle
index 82dadd6..a99fb56 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -8,7 +8,7 @@ android {
     defaultConfig {
         applicationId "com.github.axet.audiorecorder"
         minSdkVersion 9
-        targetSdkVersion 30
+        targetSdkVersion 31
         versionCode 371
         versionName "3.5.15"
     }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index d2c9784..ecef7fe 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -30,7 +30,7 @@
             android:name=".services.TileService"
             android:icon="@drawable/ic_mic_24dp"
             android:label="@string/tile_start_recording"
-            android:permission="android.permission.BIND_QUICK_SETTINGS_TILE">
+            android:permission="android.permission.BIND_QUICK_SETTINGS_TILE" android:exported="true">
             <intent-filter>
                 <action android:name="android.service.quicksettings.action.QS_TILE" />
             </intent-filter>
@@ -78,14 +78,14 @@
                 <action android:name="com.htc.intent.action.QUICKBOOT_POWERON" />
             </intent-filter>
         </receiver>
-        <receiver android:name=".services.OnUpgradeReceiver">
+        <receiver android:name=".services.OnUpgradeReceiver" android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.PACKAGE_REPLACED" />
 
                 <data android:scheme="package" />
             </intent-filter>
         </receiver>
-        <receiver android:name=".services.OnExternalReceiver">
+        <receiver android:name=".services.OnExternalReceiver" android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.EXTERNAL_APPLICATIONS_AVAILABLE" />
             </intent-filter>
@@ -97,4 +97,4 @@
             android:exported="false"
             android:grantUriPermissions="true" />
     </application>
-</manifest>
\ No newline at end of file
+</manifest>