diff --git a/lib/index.js b/lib/index.js
index 2319409..a721b70 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -7,7 +7,7 @@ var util = require('util'),
   pkg = require('../package.json');
 
 function encodeClientInfo(obj) {
-  return new Buffer(JSON.stringify(obj)).toString('base64');
+  return Buffer.from(JSON.stringify(obj)).toString('base64');
 }
 
 var clientInfoHeader = encodeClientInfo({