diff --git a/lib/standalone.js b/lib/standalone.js
index c85e32c..45b085b 100644
--- a/lib/standalone.js
+++ b/lib/standalone.js
@@ -169,7 +169,7 @@ function lexHelper(obj, app) {
 }
 
 function LEX(obj, app) {
-  var https = require('https');
+  var https = require('http2');
   var http = require('http');
 
   function listen(plainPorts, tlsPorts, onListening) {