diff --git a/go.mod b/go.mod
index 4fd98007..659c5c7f 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/free5gc/smf
 
-go 1.21.0
+go 1.21
 
 require (
 	github.com/antihax/optional v1.0.0