diff --git a/dist/index.js b/dist/index.js
index 261ff70..cdfdec2 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -1258,7 +1258,6 @@ class ExecState extends events.EventEmitter {
 "use strict";
 
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-const url = __webpack_require__(835);
 const http = __webpack_require__(605);
 const https = __webpack_require__(211);
 const pm = __webpack_require__(443);
@@ -1307,7 +1306,7 @@ var MediaTypes;
  * @param serverUrl  The server URL where the request will be sent. For example, https://api.github.com
  */
 function getProxyUrl(serverUrl) {
-    let proxyUrl = pm.getProxyUrl(url.parse(serverUrl));
+    let proxyUrl = pm.getProxyUrl(new URL(serverUrl));
     return proxyUrl ? proxyUrl.href : '';
 }
 exports.getProxyUrl = getProxyUrl;
@@ -1326,6 +1325,15 @@ const HttpResponseRetryCodes = [
 const RetryableHttpVerbs = ['OPTIONS', 'GET', 'DELETE', 'HEAD'];
 const ExponentialBackoffCeiling = 10;
 const ExponentialBackoffTimeSlice = 5;
+class HttpClientError extends Error {
+    constructor(message, statusCode) {
+        super(message);
+        this.name = 'HttpClientError';
+        this.statusCode = statusCode;
+        Object.setPrototypeOf(this, HttpClientError.prototype);
+    }
+}
+exports.HttpClientError = HttpClientError;
 class HttpClientResponse {
     constructor(message) {
         this.message = message;
@@ -1344,7 +1352,7 @@ class HttpClientResponse {
 }
 exports.HttpClientResponse = HttpClientResponse;
 function isHttps(requestUrl) {
-    let parsedUrl = url.parse(requestUrl);
+    let parsedUrl = new URL(requestUrl);
     return parsedUrl.protocol === 'https:';
 }
 exports.isHttps = isHttps;
@@ -1449,7 +1457,7 @@ class HttpClient {
         if (this._disposed) {
             throw new Error('Client has already been disposed.');
         }
-        let parsedUrl = url.parse(requestUrl);
+        let parsedUrl = new URL(requestUrl);
         let info = this._prepareRequest(verb, parsedUrl, headers);
         // Only perform retries on reads since writes may not be idempotent.
         let maxTries = this._allowRetries && RetryableHttpVerbs.indexOf(verb) != -1
@@ -1488,7 +1496,7 @@ class HttpClient {
                     // if there's no location to redirect to, we won't
                     break;
                 }
-                let parsedRedirectUrl = url.parse(redirectUrl);
+                let parsedRedirectUrl = new URL(redirectUrl);
                 if (parsedUrl.protocol == 'https:' &&
                     parsedUrl.protocol != parsedRedirectUrl.protocol &&
                     !this._allowRedirectDowngrade) {
@@ -1604,7 +1612,7 @@ class HttpClient {
      * @param serverUrl  The server URL where the request will be sent. For example, https://api.github.com
      */
     getAgent(serverUrl) {
-        let parsedUrl = url.parse(serverUrl);
+        let parsedUrl = new URL(serverUrl);
         return this._getAgent(parsedUrl);
     }
     _prepareRequest(method, requestUrl, headers) {
@@ -1677,7 +1685,7 @@ class HttpClient {
                 maxSockets: maxSockets,
                 keepAlive: this._keepAlive,
                 proxy: {
-                    proxyAuth: proxyUrl.auth,
+                    proxyAuth: `${proxyUrl.username}:${proxyUrl.password}`,
                     host: proxyUrl.hostname,
                     port: proxyUrl.port
                 }
@@ -1772,12 +1780,8 @@ class HttpClient {
                 else {
                     msg = 'Failed request: (' + statusCode + ')';
                 }
-                let err = new Error(msg);
-                // attach statusCode and body obj (if available) to the error object
-                err['statusCode'] = statusCode;
-                if (response.result) {
-                    err['result'] = response.result;
-                }
+                let err = new HttpClientError(msg, statusCode);
+                err.result = response.result;
                 reject(err);
             }
             else {
@@ -1792,12 +1796,11 @@ exports.HttpClient = HttpClient;
 /***/ }),
 
 /***/ 443:
-/***/ ((__unused_webpack_module, exports, __webpack_require__) => {
+/***/ ((__unused_webpack_module, exports) => {
 
 "use strict";
 
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-const url = __webpack_require__(835);
 function getProxyUrl(reqUrl) {
     let usingSsl = reqUrl.protocol === 'https:';
     let proxyUrl;
@@ -1812,7 +1815,7 @@ function getProxyUrl(reqUrl) {
         proxyVar = process.env['http_proxy'] || process.env['HTTP_PROXY'];
     }
     if (proxyVar) {
-        proxyUrl = url.parse(proxyVar);
+        proxyUrl = new URL(proxyVar);
     }
     return proxyUrl;
 }
@@ -5222,14 +5225,6 @@ module.exports = require("tls");
 
 /***/ }),
 
-/***/ 835:
-/***/ ((module) => {
-
-"use strict";
-module.exports = require("url");
-
-/***/ }),
-
 /***/ 669:
 /***/ ((module) => {
 
diff --git a/tsconfig.json b/tsconfig.json
index 5bc2fba..81f09f6 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -3,7 +3,8 @@
     "target": "es6",
     "module": "commonjs",
     "lib": [
-      "es6"
+      "es6",
+      "dom"
     ],
     "newLine": "lf",
     "outDir": "./lib",