diff --git a/app/Http/Controllers/CityDataController.php b/app/Http/Controllers/CityDataController.php
index 69eee48..1ae1fce 100644
--- a/app/Http/Controllers/CityDataController.php
+++ b/app/Http/Controllers/CityDataController.php
@@ -19,13 +19,13 @@ class CityDataController extends Controller
         $settings = Setting::where('slug', 'like', 'city_data_%')->get()->toArray();
 
         return $this->json(array_map(function ($item) {
-            $_value = json_decode($item['value'], true);
+            $_value = json_decode($item['value']);
 
             return [
                 'name' => $item['name'],
                 'slug' => $item['slug'],
-                'value' => $_value['value'] ?? $_value,
-                'unit' => $_value['unit'] ?? '万元',
+                'value' => $_value->value ?? $_value,
+                'unit' => $_value->unit ?? '万元',
             ];
         }, $settings));
     }