diff --git a/.travis.yml b/.travis.yml
index 08ae0d1..b9e743a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,9 @@
 language: node_js
 sudo: false
 node_js:
-  - "4"
-  - "5"
+  - "6"
+  - "8"
+  - "10"
 
 env:
   global:
diff --git a/README.md b/README.md
index 533b08f..50727a5 100644
--- a/README.md
+++ b/README.md
@@ -11,18 +11,8 @@ You can view the full list of commands in [`lib/index.ts`](lib/index.ts#L8).
 Usage
 -----
 
-If you are using a versoin of `selenium-webdriver` below `3.0.0-beta-1`, you
-must use the `patch()` function before you create your webdriver instance:
+Use WebDriver JS Extender's `extend` function on your webdriver instance:
 
-```js
-require('webdriver-js-extender').patch(
-    require('selenium-webdriver/lib/command'),
-    require('selenium-webdriver/executors'),
-    require('selenium-webdriver/http'));
-```
-
-Once you've patched `selenium-webdriver` (or if you're using version `3.x`), all
-you need to do is run the `extend` function on your webdriver instance:
 
 ```js
   var extendedWebdriver = require('webdriver-js-extender').extend(webdriver);
diff --git a/lib/index.ts b/lib/index.ts
index f2d59ee..9567dc1 100644
--- a/lib/index.ts
+++ b/lib/index.ts
@@ -2,7 +2,6 @@ import {promise as wdpromise, WebDriver} from 'selenium-webdriver';
 
 import {CommandDefinition} from './command_definition';
 import * as commandDefinitions from './command_definitions';
-import {DeferredExecutor} from './deferred_executor';
 import {Extender} from './extender';
 
 export interface ExtendedWebDriver extends WebDriver {
@@ -155,34 +154,3 @@ export function extend(baseDriver: WebDriver, fallbackGracefully = false): Exten
 
   return extendedDriver;
 }
-
-/**
- * Patches webdriver so that the extender can defie new commands.
- *
- * @example
- * patch(require('selenium-webdriver/lib/command'),
- *     require('selenium-webdriver/executors'),
- *     require('selenium-webdriver/http'));
- *
- * @param {*} lib_command The object at 'selenium-webdriver/lib/command'
- * @param {*} executors The object at 'selenium-webdriver/executors'
- * @param {*} http The object at 'selenium-webdriver/http'
- */
-export function patch(lib_command: any, executors: any, http: any) {
-  if (lib_command.DeferredExecutor === undefined) {
-    throw new Error(
-        'The version of `selenium-webdriver` you provided does ' +
-        'not use Deferred Executors.  Are you using version 3.x or above? If ' +
-        'so, you do not need to call the `patch()` function.');
-  }
-  lib_command.DeferredExecutor = DeferredExecutor;
-  executors.DeferredExecutor = DeferredExecutor;
-  // Based off of
-  // https://github.com/SeleniumHQ/selenium/blob/selenium-2.53.0/javascript/node/selenium-webdriver/executors.js#L45
-  executors.createExecutor = (url: any, opt_agent?: any, opt_proxy?: any) => {
-    return new DeferredExecutor(wdpromise.when(url, (url: any) => {
-      var client = new http.HttpClient(url, opt_agent, opt_proxy);
-      return new http.Executor(client);
-    }));
-  };
-}
diff --git a/package.json b/package.json
index 4e34ba1..6660646 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "webdriver-js-extender",
-  "version": "1.0.0",
+  "version": "2.0.0",
   "description": "A plugin which adds additional commands to selenium's javascript implementation of the webdriver client side API",
   "scripts": {
     "prepublish": "gulp prepublish",
@@ -22,13 +22,11 @@
   "license": "MIT",
   "typings": "built/lib/index.d.ts",
   "dependencies": {
-    "@types/selenium-webdriver": "^2.53.35",
-    "selenium-webdriver": "^2.53.2"
+    "@types/selenium-webdriver": "^3.0.0",
+    "selenium-webdriver": "^3.0.1"
   },
   "devDependencies": {
-    "@types/es6-promise": "0.0.32",
     "@types/jasmine": "^2.5.37",
-    "@types/node": "^6.0.46",
     "clang-format": "^1.0.42",
     "gulp": "^3.9.1",
     "gulp-clang-format": "^1.0.23",
@@ -37,5 +35,8 @@
     "run-sequence": "^1.2.2",
     "selenium-mock": "^0.1.5",
     "typescript": "^2.0.0"
+  },
+  "engines": {
+    "node": ">=6.9.x"
   }
 }
diff --git a/spec/command_tests/helpers.ts b/spec/command_tests/helpers.ts
index b2115ba..b924165 100644
--- a/spec/command_tests/helpers.ts
+++ b/spec/command_tests/helpers.ts
@@ -5,7 +5,7 @@ import {MockAppium} from '../mock-server';
 import {Session, CommandList} from '../mock-server/interfaces';
 import {session as commandList} from '../mock-server/commands';
 import {Command} from 'selenium-mock';
-import {extend, patch, ExtendedWebDriver} from '../../lib';
+import {extend, ExtendedWebDriver} from '../../lib';
 let portfinder = require('portfinder');
 
 
@@ -28,9 +28,6 @@ export function initMockSeleniumStandaloneServerAndGetDriverFactory(annotateComm
   let server: MockAppium;
   let port: number;
   beforeAll((done) => {
-    patch(require('selenium-webdriver/lib/command'),
-        require('selenium-webdriver/executors'),
-        require('selenium-webdriver/http'));
     portfinder.getPort((err: Error, p: number) => {
       if (err) {
         done.fail(err);
diff --git a/spec/command_tests/normal_spec.ts b/spec/command_tests/normal_spec.ts
index 65350ae..371df68 100644
--- a/spec/command_tests/normal_spec.ts
+++ b/spec/command_tests/normal_spec.ts
@@ -106,7 +106,7 @@ describe('normal tests', () => {
     }).then((fileContents) => {
       expect(fileContents).toBe('bar');
       return driver.pullFolderFromDevice('/tmp/wd_js_ext/folder');
-    }).then((folderContents) => {
+    }).then((folderContents: any) => {
       expect(folderContents['a.txt']).toBe('x');
       expect(folderContents['b.txt']).toBe('y');
       expect(folderContents['c.txt']).toBe('z');
diff --git a/spec/deferred_executor_spec.ts b/spec/deferred_executor_spec.ts
deleted file mode 100644
index 355947c..0000000
--- a/spec/deferred_executor_spec.ts
+++ /dev/null
@@ -1,52 +0,0 @@
-import * as webdriver from 'selenium-webdriver';
-import {DeferredExecutor} from '../lib/deferred_executor';
-
-
-describe('Deferred Executor', () => {
-  function makeExecutor(done: Function) {
-    return {
-      execute: (command: any) => {
-        expect(command).toBe('command');
-        done();
-      },
-      defineCommand: (name: string, method: string, path: string) => {
-        expect(name).toBe('name');
-        expect(method).toBe('method');
-        expect(path).toBe('path');
-        done();
-      }
-    };
-  };
-
-  it('should call execute on pending executors', (done) => {
-    let deferred = webdriver.promise.defer();
-    var deferredExecutor = new DeferredExecutor(deferred.promise);
-
-    deferredExecutor.execute('command');
-    deferred.fulfill(makeExecutor(done));
-  });
-
-  it('should call execute on fulfilled executors', (done) => {
-    let deferred = webdriver.promise.defer();
-    var deferredExecutor = new DeferredExecutor(deferred.promise);
-
-    deferred.fulfill(makeExecutor(done));
-    deferredExecutor.execute('command');
-  });
-
-  it('should call defineCommand on pending executors', (done) => {
-    let deferred = webdriver.promise.defer();
-    var deferredExecutor = new DeferredExecutor(deferred.promise);
-
-    deferredExecutor.defineCommand('name', 'method', 'path');
-    deferred.fulfill(makeExecutor(done));
-  });
-
-  it('should call defineCommand on fulfilled executors', (done) => {
-    let deferred = webdriver.promise.defer();
-    var deferredExecutor = new DeferredExecutor(deferred.promise);
-
-    deferred.fulfill(makeExecutor(done));
-    deferredExecutor.defineCommand('name', 'method', 'path');
-  });
-});
diff --git a/spec/index_spec.ts b/spec/index_spec.ts
index 8e6b603..fee2a68 100644
--- a/spec/index_spec.ts
+++ b/spec/index_spec.ts
@@ -1,6 +1,5 @@
 import * as webdriver from 'selenium-webdriver';
-import {extend, patch} from '../lib';
-import {DeferredExecutor} from '../lib/deferred_executor';
+import {extend} from '../lib';
 import {buildMockDriver, Data} from './mockdriver';
 
 
@@ -28,12 +27,4 @@ describe('extender', () => {
       done();
     });
   });
-
-  it('should patch selenium-webdriver', () => {
-    patch(require('selenium-webdriver/lib/command'),
-        require('selenium-webdriver/executors'),
-        require('selenium-webdriver/http'));
-    expect(require('selenium-webdriver/executors').createExecutor(
-      'http://localhost')).toEqual(jasmine.any(DeferredExecutor));
-  });
 });
diff --git a/spec/mockdriver.ts b/spec/mockdriver.ts
index 7ed543b..a11f3b2 100644
--- a/spec/mockdriver.ts
+++ b/spec/mockdriver.ts
@@ -1,5 +1,5 @@
 import * as webdriver from 'selenium-webdriver';
-let buildPath = require('selenium-webdriver/http').buildPath;
+let buildPath = require('selenium-webdriver/lib/http').buildPath;
 
 export interface Data {
   sessionId: string;
diff --git a/tsconfig.json b/tsconfig.json
index d32da74..9c12cf9 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,6 +1,6 @@
 {
   "compilerOptions": {
-    "target": "es5",
+    "target": "es6",
     "module": "commonjs",
     "moduleResolution": "node",
     "sourceMap": true,