diff --git a/wrp.go b/wrp.go
index cf951d5..4db3bb8 100644
--- a/wrp.go
+++ b/wrp.go
@@ -28,7 +28,7 @@ import (
 	_ "github.com/breml/rootcerts"
 )
 
-const version = "4.9.0"
+const version = "4.9.1"
 
 var (
 	addr        = flag.String("l", ":8080", "Listen address:port, default :8080")