diff --git a/app/src/main/java/io/github/lsposed/manager/ui/activity/BaseActivity.java b/app/src/main/java/io/github/lsposed/manager/ui/activity/BaseActivity.java
index 5d822f27..e2e8d157 100644
--- a/app/src/main/java/io/github/lsposed/manager/ui/activity/BaseActivity.java
+++ b/app/src/main/java/io/github/lsposed/manager/ui/activity/BaseActivity.java
@@ -1,7 +1,6 @@
 package io.github.lsposed.manager.ui.activity;
 
 import android.content.Context;
-import android.content.DialogInterface;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.content.res.Resources;
@@ -25,9 +24,13 @@ import com.google.android.material.dialog.MaterialAlertDialogBuilder;
 import java.util.Objects;
 
 import io.github.lsposed.manager.App;
+import io.github.lsposed.manager.BuildConfig;
+import io.github.lsposed.manager.Constants;
 import io.github.lsposed.manager.R;
 import io.github.lsposed.manager.util.CustomThemeColor;
 import io.github.lsposed.manager.util.CustomThemeColors;
+import io.github.lsposed.manager.util.NavUtil;
+import io.github.lsposed.manager.util.Version;
 
 public class BaseActivity extends AppCompatActivity {
 
@@ -98,6 +101,23 @@ public class BaseActivity extends AppCompatActivity {
         super.onCreate(savedInstanceState);
         AppCompatDelegate.setDefaultNightMode(preferences.getInt("theme", -1));
         theme = getTheme(this) + getCustomTheme() + preferences.getBoolean("md2", true);
+
+        // make sure the versions are consistent
+        String coreVersionStr = Constants.getXposedVersion();
+        if (coreVersionStr != null) {
+            Version managerVersion = new Version(BuildConfig.VERSION_NAME);
+            Version coreVersion = new Version(coreVersionStr);
+            if (managerVersion.equals(coreVersion)) {
+                new MaterialAlertDialogBuilder(this)
+                        .setMessage(R.string.outdated_manager)
+                        .setPositiveButton(R.string.ok, (dialog, id) -> {
+                            NavUtil.startURL(this, getString(R.string.about_source));
+                            finish();
+                        })
+                        .setCancelable(false)
+                        .show();
+            }
+        }
     }
 
     protected void setupRecyclerViewInsets(View recyclerView, View root) {
@@ -160,12 +180,4 @@ public class BaseActivity extends AppCompatActivity {
         // only pass theme style to super, so styled theme will not be overwritten
         super.onApplyThemeResource(theme, R.style.ThemeOverlay, first);
     }
-
-    private void areYouSure(int contentTextId, DialogInterface.OnClickListener listener) {
-        new MaterialAlertDialogBuilder(this).setTitle(R.string.areyousure)
-                .setMessage(contentTextId)
-                .setPositiveButton(android.R.string.ok, listener)
-                .setNegativeButton(android.R.string.cancel, null)
-                .show();
-    }
 }
diff --git a/app/src/main/java/io/github/lsposed/manager/ui/activity/MainActivity.java b/app/src/main/java/io/github/lsposed/manager/ui/activity/MainActivity.java
index 5670a099..427b0555 100644
--- a/app/src/main/java/io/github/lsposed/manager/ui/activity/MainActivity.java
+++ b/app/src/main/java/io/github/lsposed/manager/ui/activity/MainActivity.java
@@ -1,9 +1,6 @@
 package io.github.lsposed.manager.ui.activity;
 
 import android.annotation.SuppressLint;
-import android.app.AlertDialog;
-import android.app.Dialog;
-import android.content.DialogInterface;
 import android.content.Intent;
 import android.os.Bundle;
 
@@ -13,7 +10,6 @@ import com.bumptech.glide.Glide;
 
 import java.util.Locale;
 
-import io.github.lsposed.manager.BuildConfig;
 import io.github.lsposed.manager.Constants;
 import io.github.lsposed.manager.R;
 import io.github.lsposed.manager.databinding.ActivityMainBinding;
@@ -21,7 +17,6 @@ import io.github.lsposed.manager.ui.fragment.StatusDialogBuilder;
 import io.github.lsposed.manager.util.GlideHelper;
 import io.github.lsposed.manager.util.ModuleUtil;
 import io.github.lsposed.manager.util.NavUtil;
-import io.github.lsposed.manager.util.Version;
 import io.github.lsposed.manager.util.light.Light;
 
 public class MainActivity extends BaseActivity {
@@ -31,27 +26,6 @@ public class MainActivity extends BaseActivity {
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-
-        // make sure the versions are consistent
-        String coreVersionStr = Constants.getXposedVersion();
-
-        if (coreVersionStr != null) {
-            Version managerVersion = new Version(BuildConfig.VERSION_NAME);
-            Version coreVersion = new Version(coreVersionStr);
-            if (!managerVersion.equals(coreVersion)) {
-                AlertDialog.Builder builder = new AlertDialog.Builder(this);
-                builder.setMessage(R.string.outdated_manager)
-                        .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
-                            public void onClick(DialogInterface dialog, int id) {
-                                android.os.Process.killProcess(android.os.Process.myPid());
-                            }
-                        })
-                        .setCancelable(false);
-                Dialog dlg = builder.create();
-                dlg.show();
-            }
-        }
-
         binding = ActivityMainBinding.inflate(getLayoutInflater());
         setContentView(binding.getRoot());
         binding.modules.setOnClickListener(v -> {