1 files changed, 1 insertions, 1 deletions
diff --git a/peer.go b/peer.go
index ffabb8f49..a4da1591b 100644
--- a/peer.go
+++ b/peer.go
@@ -21,7 +21,7 @@ const (
 	// The size of the output buffer for writing messages
 	outputBufferSize = 50
 	// Current protocol version
-	ProtocolVersion = 20
+	ProtocolVersion = 21
 	// Interval for ping/pong message
 	pingPongTimer = 2 * time.Second
 )