diff --git a/Runtime/Code/Config/GuruServicesConfig.cs b/Runtime/Code/Config/GuruServicesConfig.cs
index 54df4c7..b1c64a6 100644
--- a/Runtime/Code/Config/GuruServicesConfig.cs
+++ b/Runtime/Code/Config/GuruServicesConfig.cs
@@ -95,7 +95,7 @@ namespace Guru
         public int level_end_success_num = 50;
         public bool enable_keywords = false;
         public double tch_020 = 0;
-        public bool using_uuid = true;
+        public bool using_uuid = false;
         public string dma_map_rule = "";
         public bool dma_country_check = false;
         public bool apple_review = false; // 苹果审核标志位