diff --git a/go.mod b/go.mod
index 78d90a9..e4a255d 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module data_prep
 
-go 1.21.0
+go 1.18
 
 require github.com/qiniu/qmgo v1.1.8