diff --git a/go.mod b/go.mod
index 7e76ae85f6bd007234c42b66bb372ffb6502b55b..da02bf7b71493e6da650bb420d80a8f2bbc2f4dc 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,7 @@
 module github.com/apache/dubbo-go
 
+go 1.13
+
 require (
 	github.com/NYTimes/gziphandler v1.1.1 // indirect
 	github.com/RoaringBitmap/roaring v0.5.5