diff --git a/app/build.gradle b/app/build.gradle
index 37193295..377abf06 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -22,8 +22,8 @@ android {
         minSdk 21
         //noinspection ExpiredTargetSdkVersion
         targetSdk 28
-        versionCode 302
-        versionName "3.0.2"
+        versionCode 303
+        versionName "3.0.3"
         javaCompileOptions {
             annotationProcessorOptions {
                 arguments = ["room.schemaLocation": "$projectDir/schemas".toString(), "eventBusIndex": "com.fongmi.android.tv.event.EventIndex"]
@@ -150,4 +150,5 @@ dependencies {
     annotationProcessor 'com.github.bumptech.glide:compiler:4.16.0'
     annotationProcessor 'org.greenrobot:eventbus-annotation-processor:3.3.1'
     coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs_nio:2.1.4'
+    implementation 'io.noties.markwon:core:4.6.2'
 }
\ No newline at end of file
diff --git a/app/src/mobile/java/com/fongmi/android/tv/ui/dialog/AboutDialog.java b/app/src/mobile/java/com/fongmi/android/tv/ui/dialog/AboutDialog.java
new file mode 100644
index 00000000..915a249d
--- /dev/null
+++ b/app/src/mobile/java/com/fongmi/android/tv/ui/dialog/AboutDialog.java
@@ -0,0 +1,54 @@
+package com.fongmi.android.tv.ui.dialog;
+
+import android.content.Intent;
+import android.net.Uri;
+import android.view.LayoutInflater;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentActivity;
+import androidx.viewbinding.ViewBinding;
+
+import com.fongmi.android.tv.databinding.DialogAboutBinding;
+
+public class AboutDialog extends BaseDialog {
+
+    private DialogAboutBinding binding;
+
+    public static void show(FragmentActivity activity) {
+        new AboutDialog().show(activity.getSupportFragmentManager(), "AboutDialog");
+    }
+
+    public static void show(Fragment fragment) {
+        new AboutDialog().show(fragment.getChildFragmentManager(), "AboutDialog");
+    }
+
+    @Override
+    protected ViewBinding getBinding(@NonNull LayoutInflater inflater, @Nullable ViewGroup container) {
+        binding = DialogAboutBinding.inflate(inflater, container, false);
+        return binding;
+    }
+
+    @Override
+    protected void initEvent() {
+        binding.github.setOnClickListener(v -> openGitHub());
+    }
+
+    private void openGitHub() {
+        try {
+            Intent intent = new Intent(Intent.ACTION_VIEW);
+            intent.setData(Uri.parse("https://github.com/Tosencen/XMBOX/releases/tag/v3.0.3"));
+            startActivity(intent);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        binding = null;
+    }
+} 
\ No newline at end of file