diff --git a/app/build.gradle b/app/build.gradle
index 5e0c26eb5..63d3ed277 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -115,11 +115,11 @@ dependencies {
   implementation 'androidx.recyclerview:recyclerview:1.2.1'
   implementation 'com.github.AppIntro:AppIntro:6.1.0'
   implementation 'io.github.medyo:android-about-page:2.0.0'
-  implementation 'com.google.android.exoplayer:exoplayer-core:2.11.8'
-  implementation 'com.google.android:flexbox:2.0.1'
+  implementation 'com.google.android.exoplayer:exoplayer-core:2.13.3'
+  implementation 'com.google.android.flexbox:flexbox:2.0.1'
   implementation 'com.google.android.material:material:1.4.0'
   implementation 'com.google.code.gson:gson:2.8.8'
-  implementation 'com.hopenlib.library:flextools:1.0.1'
+  implementation 'io.github.mrherintsoahasina:flextools:1.0.3'
   implementation 'com.ncorti:slidetoact:0.9.0'
   implementation 'io.noties.markwon:core:4.6.2'
   implementation 'org.greenrobot:eventbus:3.1.1'
@@ -153,7 +153,7 @@ dependencies {
   androidTestImplementation "io.mockk:mockk-android:$mockkVersion"
   androidTestImplementation "junit:junit:$junitVersion"
 
-  androidTestFullImplementation 'tools.fastlane:screengrab:2.1.0'
+  androidTestFullImplementation 'tools.fastlane:screengrab:2.1.1'
 
   debugImplementation "androidx.fragment:fragment-testing:$fragmentVersion"
 }
diff --git a/app/src/main/java/com/github/ashutoshgngwr/noice/ext/SimpleExoPlayerExt.kt b/app/src/main/java/com/github/ashutoshgngwr/noice/ext/SimpleExoPlayerExt.kt
index 4b9499f6f..2215ba9c8 100644
--- a/app/src/main/java/com/github/ashutoshgngwr/noice/ext/SimpleExoPlayerExt.kt
+++ b/app/src/main/java/com/github/ashutoshgngwr/noice/ext/SimpleExoPlayerExt.kt
@@ -75,6 +75,6 @@ fun SimpleExoPlayer.setAudioAttributesCompat(compatAttrs: AudioAttributesCompat)
     .build()
 
   if (attrs != audioAttributes) {
-    audioAttributes = attrs
+    setAudioAttributes(attrs, false)
   }
 }
diff --git a/app/src/main/res/layout/random_preset_fragment.xml b/app/src/main/res/layout/random_preset_fragment.xml
index 662396cd0..42f5bff26 100644
--- a/app/src/main/res/layout/random_preset_fragment.xml
+++ b/app/src/main/res/layout/random_preset_fragment.xml
@@ -40,7 +40,7 @@
       android:layout_width="match_parent"
       android:layout_height="8dp" />
 
-    <com.hopenlib.flextools.FlexRadioGroup
+    <io.github.mrherintsoahasina.flextools.FlexRadioGroup
       android:id="@+id/preset_type"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
@@ -70,7 +70,7 @@
         android:layout_marginHorizontal="16dp"
         android:text="@string/relax" />
 
-    </com.hopenlib.flextools.FlexRadioGroup>
+    </io.github.mrherintsoahasina.flextools.FlexRadioGroup>
 
     <Space
       android:layout_width="match_parent"
@@ -86,7 +86,7 @@
       android:layout_width="match_parent"
       android:layout_height="8dp" />
 
-    <com.hopenlib.flextools.FlexRadioGroup
+    <io.github.mrherintsoahasina.flextools.FlexRadioGroup
       android:id="@+id/preset_intensity"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
@@ -116,7 +116,7 @@
         android:layout_marginHorizontal="16dp"
         android:text="@string/dense" />
 
-    </com.hopenlib.flextools.FlexRadioGroup>
+    </io.github.mrherintsoahasina.flextools.FlexRadioGroup>
 
     <Space
       android:layout_width="match_parent"
diff --git a/build.gradle b/build.gradle
index c60e0f971..401497ac8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -17,7 +17,7 @@ buildscript {
 allprojects {
   repositories {
     google()
-    jcenter() // TODO: replace it with maven central by the end of the year 2021.
+    mavenCentral()
     maven { url "https://jitpack.io" }
   }
 }