diff --git a/app/build.gradle b/app/build.gradle
index 82dadd6..59d5831 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -8,9 +8,9 @@ android {
     defaultConfig {
         applicationId "com.github.axet.audiorecorder"
         minSdkVersion 9
-        targetSdkVersion 30
-        versionCode 371
-        versionName "3.5.15"
+        targetSdkVersion 31
+        versionCode 372
+        versionName "3.5.16"
     }
     signingConfigs {
         release {
@@ -53,7 +53,7 @@ android {
 
 dependencies {
     testImplementation 'junit:junit:4.12'
-    implementation ('com.github.axet:android-audio-library:1.1.16') // implementation project(':android-audio-library')
+    implementation ('com.github.axet:android-audio-library:1.1.18') // implementation project(':android-audio-library')
     implementation ('com.github.axet:wget:1.7.0') { exclude group: 'org.json', module: 'json' }
     assets('com.google.android.exoplayer:exoplayer:2.7.3') { exclude group: 'com.android.support' }
 }
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>
diff --git a/app/src/main/java/com/github/axet/audiorecorder/widgets/RecordingSourcePreferenceCompat.java b/app/src/main/java/com/github/axet/audiorecorder/widgets/RecordingSourcePreferenceCompat.java
index 5629aee..cdb450c 100644
--- a/app/src/main/java/com/github/axet/audiorecorder/widgets/RecordingSourcePreferenceCompat.java
+++ b/app/src/main/java/com/github/axet/audiorecorder/widgets/RecordingSourcePreferenceCompat.java
@@ -39,8 +39,6 @@ public class RecordingSourcePreferenceCompat extends com.github.axet.audiolibrar
     }
 
     public boolean isSourceSupported(String s) {
-        if (s.equals(AudioApplication.PREFERENCE_SOURCE_RAW) && !Sound.isUnprocessedSupported(getContext()))
-            return false;
         if (s.equals(AudioApplication.PREFERENCE_SOURCE_INTERNAL) && Build.VERSION.SDK_INT < 29)
             return false;
         AudioManager am = (AudioManager) getContext().getSystemService(Context.AUDIO_SERVICE);
diff --git a/build.gradle b/build.gradle
index bf2742b..1f040ae 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,8 +5,8 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.0.2'
-        classpath 'com.github.axet:gradle-android-dx:0.1.3'
+        classpath 'com.android.tools.build:gradle:3.5.4'
+        classpath 'com.github.axet:gradle-android-dx:0.3.2'
     }
 }
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 622ab64..f997847 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-bin.zip
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip
-zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME