diff --git a/swarm/network/protocol_test.go b/swarm/network/protocol_test.go
index e3835a5e16..a6f26e5f02 100644
--- a/swarm/network/protocol_test.go
+++ b/swarm/network/protocol_test.go
@@ -31,7 +31,7 @@ import (
 )
 
 const (
-	TestProtocolVersion   = 5
+	TestProtocolVersion   = 6
 	TestProtocolNetworkID = 3
 )