diff --git a/go.mod b/go.mod
index 39592de..6abc1a2 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module code.fnuoos.com/go_rely_warehouse/zyos_go_pay.git
 
-go 1.16
+go 1.15
 
 require (
 	code.fnuoos.com/go_rely_warehouse/zyos_go_tools.git v1.0.7