diff --git a/version.go b/version.go
index 38cf348..a6e7b77 100644
--- a/version.go
+++ b/version.go
@@ -1,6 +1,7 @@
 package main
 
 // VERSION denotes package version number of hello-universe
+// Follow https://semver.org/
 var VERSION = [...]string{
 	"1", // MAJOR,
 	"3", // MINOR,