diff --git a/node/src/main/scala/org/bitcoins/node/networking/peer/PeerMessageSender.scala b/node/src/main/scala/org/bitcoins/node/networking/peer/PeerMessageSender.scala
index 3c7a11d27c..3b24254f41 100644
--- a/node/src/main/scala/org/bitcoins/node/networking/peer/PeerMessageSender.scala
+++ b/node/src/main/scala/org/bitcoins/node/networking/peer/PeerMessageSender.scala
@@ -75,7 +75,7 @@ case class PeerMessageSender(client: P2PClient)(implicit conf: NodeAppConfig)
       val transmittingIpAddress = InetAddress.getLocalHost
       val receivingIpAddress = client.peer.socket.getAddress
       val versionMsg = VersionMessage(conf.network,
-                                      "/Bitcoin-S:0.3.0/",
+                                      "/Bitcoin-S:0.4.0/",
                                       Int32(height),
                                       receivingIpAddress,
                                       transmittingIpAddress)