diff --git a/beike/Models/Product.php b/beike/Models/Product.php
index 80fd0d9b..a6be47e9 100644
--- a/beike/Models/Product.php
+++ b/beike/Models/Product.php
@@ -17,6 +17,7 @@ class Product extends Model
     ];
     protected $casts = [
         'active' => 'boolean',
+        'variables' => 'array',
     ];
 
     public function categories()
diff --git a/beike/Shop/Http/Resources/ProductDetail.php b/beike/Shop/Http/Resources/ProductDetail.php
index 1dd883d7..caa97164 100644
--- a/beike/Shop/Http/Resources/ProductDetail.php
+++ b/beike/Shop/Http/Resources/ProductDetail.php
@@ -23,7 +23,7 @@ class ProductDetail extends JsonResource
             'description' => $this->description->description ?? '',
             'image' => image_resize($this->image),
             'category_id' => $this->category_id ?? null,
-            'variables' => json_decode($this->variables),
+            'variables' => $this->variables,
             'skus' => SkuDetail::collection($this->skus)->jsonSerialize(),
         ];
     }
diff --git a/beike/Shop/Http/Resources/SkuDetail.php b/beike/Shop/Http/Resources/SkuDetail.php
index 635d32e3..dd142f04 100644
--- a/beike/Shop/Http/Resources/SkuDetail.php
+++ b/beike/Shop/Http/Resources/SkuDetail.php
@@ -19,7 +19,7 @@ class SkuDetail extends JsonResource
     {
         return [
             'id' => $this->id,
-            'variants' => json_decode($this->varians),
+            'variants' => $this->variants,
             'position' => $this->position,
             'image' => image_resize($this->image),
             'model' => $this->model,