diff --git a/zh/cache.md b/zh/cache.md
index 5bcfba249..356303e8e 100644
--- a/zh/cache.md
+++ b/zh/cache.md
@@ -21,7 +21,7 @@ composer require hyperf/cache
 return [
     'default' => [
         'driver' => Hyperf\Cache\Driver\RedisDriver::class,
-        'packer' => Hyperf\Cache\Packer\PhpSerializer::class,
+        'packer' => Hyperf\Utils\Packer\PhpSerializer::class,
         'prefix' => 'c:',
     ],
 ];