diff --git a/peer.go b/peer.go
index bd20bb2b9..4cbe8b652 100644
--- a/peer.go
+++ b/peer.go
@@ -22,7 +22,7 @@ const (
 	// The size of the output buffer for writing messages
 	outputBufferSize = 50
 	// Current protocol version
-	ProtocolVersion = 25
+	ProtocolVersion = 26
 	// Interval for ping/pong message
 	pingPongTimer = 2 * time.Second
 )