diff --git a/models/nodes.go b/models/nodes.go
index 9d49372..d8d53d9 100644
--- a/models/nodes.go
+++ b/models/nodes.go
@@ -35,7 +35,7 @@ type Nodes struct {
 // NewNodes create Nodes structs (cache DB)
 func NewNodes() *Nodes {
 	nodes := &Nodes{
-		Version: 1,
+		Version: 2,
 		List:    make(map[string]*Node),
 	}