diff --git a/peer.go b/peer.go
index 46ac65247..331e9de37 100644
--- a/peer.go
+++ b/peer.go
@@ -24,7 +24,7 @@ const (
 	// The size of the output buffer for writing messages
 	outputBufferSize = 50
 	// Current protocol version
-	ProtocolVersion = 48
+	ProtocolVersion = 49
 	// Current P2P version
 	P2PVersion = 2
 	// Ethereum network version