diff --git a/src/main.go b/src/main.go
index 4331f60..6778982 100644
--- a/src/main.go
+++ b/src/main.go
@@ -37,7 +37,6 @@ func run() {
 			"/ip4/0.0.0.0/tcp/6666",
 			"/ip4/0.0.0.0/udp/6666/quic",
 		),
-		libp2p.NoSecurity,
 	)
 	if err != nil {
 		log.Printf("Failed to create h1: %v", err)