DeprecationWarning: Buffer about node-nanomsg HOT 2 CLOSED

diff --git a/perf/common.js b/perf/common.js
index d08d6f5..00867bc 100644
--- a/perf/common.js
+++ b/perf/common.js
@@ -4,7 +4,7 @@ exports.createMsg = function(msgType, sz) {
   var buf;
   switch (msgType) {
     case '--buffer':
-      buf = new Buffer(sz);
+      buf = Buffer.alloc(sz);
       buf.fill('o');
       break;
     case '--string':
diff --git a/test/send.js b/test/send.js
index c5993e8..2b1bcd9 100644
--- a/test/send.js
+++ b/test/send.js
@@ -54,7 +54,7 @@ test('send can take a buffer', function (t) {
   var pub = nano.socket('pub');
   var sub = nano.socket('sub');
   var addr = 'inproc://some_address';
-  var msg = new Buffer('hello');
+  var msg = Buffer.from('hello');
 
   pub.bind(addr);
   sub.connect(addr);
@@ -85,7 +85,7 @@ test('should not null terminate when sending strings', function (t) {
     if (buf[buf.length - 1] === 0) {
       t.fail();
     }
-    t.equal(buf.equals(new Buffer(msg)), true);
+    t.equal(buf.equals(Buffer.from(msg)), true);
     t.equal(buf.length, msg.length);
     pub.close();
     sub.close();
diff --git a/test/transform.js b/test/transform.js
index 01fdbb4..c3e0acc 100644
--- a/test/transform.js
+++ b/test/transform.js
@@ -5,12 +5,12 @@ var nano = require('../');
 var test = require('tape');
 
 nano.Socket.prototype.transform = function (buf) {
-    if (!Buffer.isBuffer(buf)) buf = new Buffer(buf);
-    return Buffer.concat([new Buffer([0x00]), buf]);
+    if (!Buffer.isBuffer(buf)) buf = Buffer.from(buf);
+    return Buffer.concat([Buffer.from([0x00]), buf]);
 }
 
 nano.Socket.prototype.restore = function (buf) {
-    return Buffer.concat([new Buffer([0xFF]), buf]);
+    return Buffer.concat([Buffer.from([0xFF]), buf]);
 }
 
 test('inproc socket pub sub', function (t) {