diff --git a/android/src/main/java/top/jerryyan/RN/A/VersionUpgrade/UpgradeModule.java b/android/src/main/java/top/jerryyan/RN/A/VersionUpgrade/UpgradeModule.java
index 118419a..072ae43 100644
--- a/android/src/main/java/top/jerryyan/RN/A/VersionUpgrade/UpgradeModule.java
+++ b/android/src/main/java/top/jerryyan/RN/A/VersionUpgrade/UpgradeModule.java
@@ -33,6 +33,7 @@ import okhttp3.Response;
 public class UpgradeModule extends ReactContextBaseJavaModule {
     private final ReactApplicationContext reactContext;
     private String DOWNLOAD_URL = "http://luntan.qgmzbxs.com/source/tsgzCircles.apk";
+    private String HOST = "http://luntan.qgmzbxs.com/";
     private String TITLE = "更新";
     private String CONTENT = "大家好，我是勤劳的催更新菌\n点击更新，让我们一起成为一天更新八次的暴躁老哥吧";
 
@@ -94,14 +95,18 @@ public class UpgradeModule extends ReactContextBaseJavaModule {
     }
 
     private void _startDownload(){
-
+        OkHttpClient okHttpClient = new OkHttpClient();
+        final Request request = new Request.Builder()
+                .url(DOWNLOAD_URL)
+                .method("GET", null)
+                .build();
+        Call call = okHttpClient.newCall(request);
     }
 
     @ReactMethod
     public void checkUpgrade(){
-        final UpgradeModule that = this;
         OkHttpClient okHttpClient = new OkHttpClient();
-        String upgradeUrl = "https://www.tsgzvore.com/versionCheck";
+        String upgradeUrl = HOST.concat("versionCheck");
         PackageManager manager = reactContext.getPackageManager();
         try {
             String packageName = reactContext.getPackageName();
@@ -121,50 +126,25 @@ public class UpgradeModule extends ReactContextBaseJavaModule {
                 .method("GET", null)
                 .build();
         Call call = okHttpClient.newCall(request);
-        final Handler handler = new ShowUpgradeAlertHandler(that);
-        call.enqueue(new Callback() {
-            @Override
-            public void onFailure(Call call, IOException e) {
-                Log.e("VERSION CHECK", call.toString(), e);
-            }
-
-            @Override
-            public void onResponse(Call call, Response response) {
-                if(response.isSuccessful()){
-                    if(response.body() == null) return;
-                    try {
-                        String jsonText = response.body().string();
-                        Log.d("VERSION CHECK", jsonText);
-                        JSONObject json = new JSONObject(jsonText);
-                        int status = json.getInt("status");
-                        if(status > 0){
-                            CONTENT = json.getString("message");
-//                            String version = json.getString("version");
-                            JSONObject jsonData = json.getJSONObject("data");
-                            DOWNLOAD_URL = jsonData.getString("url");
-                            handler.sendEmptyMessage(0);
-                        }
-                    } catch (IOException e) {
-                        Log.e("REQUEST FAILED", "AAA", e);
-                    } catch (JSONException e) {
-                        Log.e("JSON FAILED", "BBB", e);
-                    }
+        try {
+            Response response = call.execute();
+            if(response.isSuccessful()){
+                if(response.body() == null) return;
+                String jsonText = response.body().string();
+                Log.d("VERSION CHECK", jsonText);
+                JSONObject json = new JSONObject(jsonText);
+                int status = json.getInt("status");
+                if(status > 0){
+                    CONTENT = json.getString("message");
+                    JSONObject jsonData = json.getJSONObject("data");
+                    DOWNLOAD_URL = jsonData.getString("url");
+                    this._alertDialog();
                 }
             }
-        });
-    }
-}
-
-final class ShowUpgradeAlertHandler extends Handler
-{
-    private UpgradeModule module;
-
-    ShowUpgradeAlertHandler(UpgradeModule module)
-    {
-        this.module = module;
-    }
-    @Override
-    public void handleMessage(Message message){
-        module._alertDialog();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } catch (JSONException e) {
+            Log.e("JSON FAILED", "BBB", e);
+        }
     }
 }
\ No newline at end of file