diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3c3629e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+node_modules
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..fb4dbc2
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,31 @@
+{
+  "name": "proxy-login-automator",
+  "version": "1.2.4",
+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
+    "": {
+      "version": "1.2.4",
+      "license": "MIT",
+      "dependencies": {
+        "http-parser-js": "^0.5.3"
+      },
+      "bin": {
+        "proxy-login-automator": "proxy-login-automator.js",
+        "proxy-login-automator.js": "proxy-login-automator.js"
+      }
+    },
+    "node_modules/http-parser-js": {
+      "version": "0.5.3",
+      "resolved": "https://registry.npmjs.org/http-parser-js/-/http-parser-js-0.5.3.tgz",
+      "integrity": "sha512-t7hjvef/5HEK7RWTdUzVUhl8zkEu+LlaE0IYzdMuvbSDipxBRpOn4Uhw8ZyECEa808iVT8XCjzo6xmYt4CiLZg=="
+    }
+  },
+  "dependencies": {
+    "http-parser-js": {
+      "version": "0.5.3",
+      "resolved": "https://registry.npmjs.org/http-parser-js/-/http-parser-js-0.5.3.tgz",
+      "integrity": "sha512-t7hjvef/5HEK7RWTdUzVUhl8zkEu+LlaE0IYzdMuvbSDipxBRpOn4Uhw8ZyECEa808iVT8XCjzo6xmYt4CiLZg=="
+    }
+  }
+}
diff --git a/package.json b/package.json
index 311bae6..12ccfe1 100644
--- a/package.json
+++ b/package.json
@@ -18,5 +18,8 @@
   "bugs": {
     "url": "https://github.com/sjitech/proxy-login-automator/issues"
   },
-  "homepage": "https://github.com/sjitech/proxy-login-automator#readme"
+  "homepage": "https://github.com/sjitech/proxy-login-automator#readme",
+  "dependencies": {
+    "http-parser-js": "^0.5.3"
+  }
 }
diff --git a/proxy-login-automator.js b/proxy-login-automator.js
index dcac576..08aa5b4 100755
--- a/proxy-login-automator.js
+++ b/proxy-login-automator.js
@@ -1,10 +1,16 @@
 #!/usr/bin/env node
 'use strict';
 var net = require('net'), tls = require('tls');
-var HTTPParser = process.binding('http_parser').HTTPParser;
+var HTTPParser = require('http-parser-js').HTTPParser;
 var http = require('http'), https = require('https');
 var url = require('url');
 
+const kOnHeaders = HTTPParser.kOnHeaders | 0;
+const kOnHeadersComplete = HTTPParser.kOnHeadersComplete | 0;
+const kOnBody = HTTPParser.kOnBody | 0;
+const kOnMessageComplete = HTTPParser.kOnMessageComplete | 0;
+const kOnExecute = HTTPParser.kOnExecute | 0;
+
 function main() {
   //convert `-key value` to cfg[key]=value
   var cfg = process.argv.slice(2/*skip ["node", "xxx.js"]*/).reduce(function (cfg, arg, i, argv) {
@@ -36,7 +42,7 @@ function main() {
     return console.error('when use as a PAC server, the local_host parameter must be a definite address');
   }
   console.log('Using parameters: ' + JSON.stringify(cfg, null, '  '));
-  cfg.buf_proxy_basic_auth = new Buffer('Proxy-Authorization: Basic ' + new Buffer(cfg.usr + ':' + cfg.pwd).toString('base64'));
+  cfg.buf_proxy_basic_auth = Buffer.from('Proxy-Authorization: Basic ' + Buffer.from(cfg.usr + ':' + cfg.pwd).toString('base64'));
 
   if (cfg.as_pac_server) {
     createPacServer(cfg.local_host, cfg.local_port, cfg.remote_host, cfg.remote_port, cfg.buf_proxy_basic_auth, cfg.is_remote_https, cfg.ignore_https_cert, cfg.are_remotes_in_pac_https);
@@ -45,9 +51,9 @@ function main() {
   }
 }
 
-var CR = 0xd, LF = 0xa, BUF_CR = new Buffer([0xd]), BUF_CR_LF_CR_LF = new Buffer([0xd, 0xa, 0xd, 0xa]),
-  BUF_LF_LF = new Buffer([0xa, 0xa]), BUF_PROXY_CONNECTION_CLOSE = new Buffer('Proxy-Connection: close');
-var STATE_NONE = 0, STATE_FOUND_LF = 1, STATE_FOUND_LF_CR = 2;
+var CR = 0xd, LF = 0xa, BUF_CR = Buffer.from([0xd]), BUF_CR_LF_CR_LF = Buffer.from([0xd, 0xa, 0xd, 0xa]),
+  BUF_LF_LF = Buffer.from([0xa, 0xa]), BUF_PROXY_CONNECTION_CLOSE = Buffer.from('Proxy-Connection: close');
+var STATE_NONE = 0, STATE_FOUND_LF = 1, STATE_FOUND_LF_CR = 2, STATE_CONNECTED = 3;
 
 function createPortForwarder(local_host, local_port, remote_host, remote_port, buf_proxy_basic_auth, is_remote_https, ignore_https_cert) {
   net.createServer({allowHalfOpen: true}, function (socket) {
@@ -117,10 +123,16 @@ function createPortForwarder(local_host, local_port, remote_host, remote_port, b
 
         //find second CR LF or LF
         if (buf[i] === LF) {
-          parser.__is_headers_complete = false;
-          parser.execute(buf.slice(unsavedStart, i + 1));
+          var headersComplete = false;
+          parser[kOnHeadersComplete] =
+              function(versionMajor, versionMinor, headers, method,
+                       url, statusCode, statusMessage, upgrade, shouldKeepAlive) {
+                  headersComplete = true;
+                  //console.log('kOnHeadersComplete');
+              }
 
-          if (parser.__is_headers_complete) {
+          parser.execute(buf.slice(unsavedStart, i + 1));
+          if (headersComplete) {
             buf_ary.push(buf.slice(unsavedStart, buf[i - 1] === CR ? i - 1 : i));
             //console.log('insert auth header');
             buf_ary.push(buf_proxy_basic_auth);