diff --git a/hw.go b/hw.go
index d325d8d..b3b9d55 100644
--- a/hw.go
+++ b/hw.go
@@ -2,7 +2,7 @@ package hw
 
 import "net/http"
 
-const Version = "v0.1.2"
+var Version = "unset"
 
 // OK simply return 200
 func OK(w http.ResponseWriter, req *http.Request) {}