diff --git a/app/service/MiniProgramWechatService.php b/app/service/MiniProgramWechatService.php
index 1bb67ad..06971e6 100644
--- a/app/service/MiniProgramWechatService.php
+++ b/app/service/MiniProgramWechatService.php
@@ -9,6 +9,8 @@ use think\facade\Log;
 
 class MiniProgramWechatService
 {
+    private const ACCESS_TOKEN_ERROR_CODES = [40001, 40014, 42001];
+
     private string $miniAppCode;
     private array $miniApp;
 
@@ -44,24 +46,46 @@ class MiniProgramWechatService
 
     public function mobileByPhoneCode(string $phoneCode): string
     {
-        $accessToken = $this->wechatAccessToken();
-        if ($phoneCode === '' || $accessToken === '') {
+        if ($phoneCode === '') {
             return '';
         }
 
-        $response = Httpcurl::request(
-            'https://api.weixin.qq.com/wxa/business/getuserphonenumber?access_token=' . urlencode($accessToken),
-            'post',
-            json_encode(['code' => $phoneCode], JSON_UNESCAPED_UNICODE),
-            ['Content-Type: application/json'],
-            8
-        );
-        $result = $this->decodeWechatResponse($response, 'miniapi wx get phone number');
-        $phoneInfo = $result['phone_info'] ?? [];
-        return (string)($phoneInfo['purePhoneNumber'] ?? $phoneInfo['phoneNumber'] ?? '');
+        for ($attempt = 0; $attempt < 2; $attempt++) {
+            $accessToken = $this->wechatAccessToken($attempt === 1);
+            if ($accessToken === '') {
+                return '';
+            }
+
+            $response = Httpcurl::request(
+                'https://api.weixin.qq.com/wxa/business/getuserphonenumber?access_token=' . urlencode($accessToken),
+                'post',
+                json_encode(['code' => $phoneCode], JSON_UNESCAPED_UNICODE),
+                ['Content-Type: application/json'],
+                8
+            );
+            $result = $this->decodeResponse($response, 'miniapi wx get phone number');
+            if ($result === []) {
+                return '';
+            }
+
+            $errcode = intval($result['errcode'] ?? 0);
+            if ($errcode !== 0) {
+                Log::warning('miniapi wx get phone number failed: ' . json_encode($result, JSON_UNESCAPED_UNICODE));
+                if ($attempt === 0 && in_array($errcode, self::ACCESS_TOKEN_ERROR_CODES, true)) {
+                    Cache::delete($this->wechatAccessTokenCacheKey());
+                    continue;
+                }
+                return '';
+            }
+
+            $phoneInfo = $result['phone_info'] ?? [];
+            return (string)($phoneInfo['purePhoneNumber'] ?? $phoneInfo['phoneNumber'] ?? '');
+        }
+
+        return '';
     }
 
-    private function wechatAccessToken(): string
+    private function wechatAccessToken(bool $forceRefresh = false): string
     {
         $config = $this->wechatConfig();
         if ($config['appid'] === '' || $config['secret'] === '') {
@@ -69,17 +93,26 @@ class MiniProgramWechatService
             return '';
         }
 
-        $cacheKey = 'miniapp_access_token_' . $this->miniAppCode;
-        $cached = Cache::get($cacheKey);
-        if (!empty($cached)) {
-            return (string)$cached;
+        $cacheKey = $this->wechatAccessTokenCacheKey();
+        if (!$forceRefresh) {
+            $cached = Cache::get($cacheKey);
+            if (!empty($cached)) {
+                return (string)$cached;
+            }
         }
 
-        $response = Httpcurl::request('https://api.weixin.qq.com/cgi-bin/token', 'get', [
-            'grant_type' => 'client_credential',
-            'appid' => $config['appid'],
-            'secret' => $config['secret'],
-        ], [], 8);
+        $response = Httpcurl::request(
+            'https://api.weixin.qq.com/cgi-bin/stable_token',
+            'post',
+            json_encode([
+                'grant_type' => 'client_credential',
+                'appid' => $config['appid'],
+                'secret' => $config['secret'],
+                'force_refresh' => $forceRefresh,
+            ], JSON_UNESCAPED_UNICODE),
+            ['Content-Type: application/json'],
+            8
+        );
         $result = $this->decodeWechatResponse($response, 'miniapi wx access token');
         if (empty($result['access_token'])) {
             return '';
@@ -90,6 +123,12 @@ class MiniProgramWechatService
         return (string)$result['access_token'];
     }
 
+    private function wechatAccessTokenCacheKey(): string
+    {
+        $appid = (string)($this->miniApp['wechat_appid'] ?? '');
+        return 'miniapp_stable_access_token_' . md5($this->miniAppCode . '|' . $appid);
+    }
+
     private function wechatConfig(): array
     {
         return [