diff --git a/peer.go b/peer.go
index 4a390f015c..993f48d20b 100644
--- a/peer.go
+++ b/peer.go
@@ -18,7 +18,7 @@ const (
 	// The size of the output buffer for writing messages
 	outputBufferSize = 50
 	// Current protocol version
-	ProtocolVersion = 9
+	ProtocolVersion = 10
 )
 
 type DiscReason byte