diff --git a/app/Service/Admin/Good/CategoryService.php b/app/Service/Admin/Good/CategoryService.php
index 0fd3707..c46a4e4 100644
--- a/app/Service/Admin/Good/CategoryService.php
+++ b/app/Service/Admin/Good/CategoryService.php
@@ -32,7 +32,7 @@ class CategoryService extends BaseService
      */
     public function handle()
     {
-        $limit = $this->request->input('limit', 10);
+        $limit = (int)$this->request->input('limit', 10);
         $list = $this->categoryModel->paginate($limit)->toArray();
 
         if (empty($list['data'])) return $this->return->success('success',['list' => $list]);