diff --git a/app/build.gradle b/app/build.gradle
index f20954ecc..bd7bc1415 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -10,8 +10,8 @@ android {
         applicationId "com.fongmi.android.tv"
         minSdk 21
         targetSdk 32
-        versionCode 1
-        versionName "1.0.0"
+        versionCode 2
+        versionName "1.0.2"
     }
 
     productFlavors {
diff --git a/app/src/leanback/java/com/fongmi/android/tv/ui/activity/HomeActivity.java b/app/src/leanback/java/com/fongmi/android/tv/ui/activity/HomeActivity.java
index 39b085614..8472ad343 100644
--- a/app/src/leanback/java/com/fongmi/android/tv/ui/activity/HomeActivity.java
+++ b/app/src/leanback/java/com/fongmi/android/tv/ui/activity/HomeActivity.java
@@ -37,6 +37,7 @@ import com.fongmi.android.tv.ui.presenter.ProgressPresenter;
 import com.fongmi.android.tv.ui.presenter.TitlePresenter;
 import com.fongmi.android.tv.ui.presenter.VodPresenter;
 import com.fongmi.android.tv.utils.Clock;
+import com.fongmi.android.tv.utils.FileUtil;
 import com.fongmi.android.tv.utils.Notify;
 import com.fongmi.android.tv.utils.ResUtil;
 import com.google.common.collect.Lists;
@@ -70,6 +71,7 @@ public class HomeActivity extends BaseActivity implements VodPresenter.OnClickLi
 
     @Override
     protected void initView() {
+        new Thread(FileUtil::checkUpdate).start();
         Clock.start(mBinding.time);
         Server.get().start();
         Players.get().init();
diff --git a/app/src/main/java/com/fongmi/android/tv/utils/FileUtil.java b/app/src/main/java/com/fongmi/android/tv/utils/FileUtil.java
index 9c2dd9ae7..27f715b49 100644
--- a/app/src/main/java/com/fongmi/android/tv/utils/FileUtil.java
+++ b/app/src/main/java/com/fongmi/android/tv/utils/FileUtil.java
@@ -1,17 +1,31 @@
 package com.fongmi.android.tv.utils;
 
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Build;
 import android.os.Environment;
+import android.text.TextUtils;
+import android.util.Log;
+
+import androidx.core.content.FileProvider;
 
 import com.fongmi.android.tv.App;
+import com.fongmi.android.tv.BuildConfig;
+import com.fongmi.android.tv.net.OKHttp;
+
+import org.json.JSONObject;
 
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.InputStreamReader;
+import java.net.URLConnection;
 
 public class FileUtil {
 
+    private static final String TAG = FileUtil.class.getSimpleName();
+
     public static String getRootPath() {
         return Environment.getExternalStorageDirectory().getAbsolutePath();
     }
@@ -32,15 +46,29 @@ public class FileUtil {
         return getCacheFile("spider.jar");
     }
 
+    public static File getApk() {
+        return getCacheFile("update.apk");
+    }
+
     public static File getLocal(String path) {
         return new File(path.replace("file:/", getRootPath()));
     }
 
-    public static void write(File file, byte[] data) throws Exception {
+    private static Uri getShareUri(File file) {
+        return Build.VERSION.SDK_INT < Build.VERSION_CODES.N ? Uri.fromFile(file) : FileProvider.getUriForFile(App.get(), App.get().getPackageName() + ".provider", file);
+    }
+
+    private static String getMimeType(String fileName) {
+        String mimeType = URLConnection.guessContentTypeFromName(fileName);
+        return TextUtils.isEmpty(mimeType) ? "*/*" : mimeType;
+    }
+
+    public static File write(File file, byte[] data) throws Exception {
         FileOutputStream fos = new FileOutputStream(file);
         fos.write(data);
         fos.flush();
         fos.close();
+        return file;
     }
 
     public static String read(String path) {
@@ -55,4 +83,29 @@ public class FileUtil {
             return "";
         }
     }
+
+    public static void clearDir(File dir) {
+        if (dir == null) return;
+        if (dir.isDirectory()) for (File file : dir.listFiles()) clearDir(file);
+        if (dir.delete()) Log.d(TAG, "Deleted:" + dir.getPath());
+    }
+
+    public static void checkUpdate() {
+        try {
+            String json = OKHttp.newCall("https://github.com/FongMi/TV/raw/main/release/leanback.json").execute().body().string();
+            JSONObject object = new JSONObject(json);
+            if (object.optInt("version") <= BuildConfig.VERSION_CODE) clearDir(getCacheDir());
+            else open(write(getApk(), OKHttp.newCall(object.optString("url")).execute().body().bytes()));
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    private static void open(File file) {
+        Intent intent = new Intent(Intent.ACTION_VIEW);
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+        intent.setDataAndType(getShareUri(file), FileUtil.getMimeType(file.getName()));
+        App.get().startActivity(intent);
+    }
 }
diff --git a/app/src/main/res/xml/file_paths.xml b/app/src/main/res/xml/file_paths.xml
index f75952925..136e6e260 100644
--- a/app/src/main/res/xml/file_paths.xml
+++ b/app/src/main/res/xml/file_paths.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <paths>
+        <cache-path name="cache_files" path="." />
         <external-path name="external_files" path="." />
     </paths>
 </resources>
\ No newline at end of file