diff --git a/main.go b/main.go
index 70642a9..f84d46c 100644
--- a/main.go
+++ b/main.go
@@ -8,7 +8,7 @@ import (
 	"github.com/manabu/dockerlayer/config"
 )
 
-const version = "0.1.3"
+const version = "0.1.4-dev"
 
 func init() {
 	config.VersionString = version