diff --git a/types/connect-mongodb-session/connect-mongodb-session-tests.ts b/types/connect-mongodb-session/connect-mongodb-session-tests.ts
index 9bf3c89e234759..f1906dd4dd49bd 100644
--- a/types/connect-mongodb-session/connect-mongodb-session-tests.ts
+++ b/types/connect-mongodb-session/connect-mongodb-session-tests.ts
@@ -1,39 +1,40 @@
-import * as express from 'express'
-import session = require('express-session')
-import connectMongo = require('connect-mongodb-session')
-let MongoDBStore = connectMongo(session)
+import * as express from 'express';
+import session = require('express-session');
+import connectMongo = require('connect-mongodb-session');
 
-var app = express();
-var store = new MongoDBStore({
-  uri: 'mongodb://localhost:27017/connect_mongodb_session_test',
-  collection: 'mySessions'
-}, function(error) {
+const MongoDBStore = connectMongo(session);
+
+const app = express();
+const store = new MongoDBStore({
+    uri: 'mongodb://localhost:27017/connect_mongodb_session_test',
+    collection: 'mySessions'
+}, (error) => {
     // some connection error occur
 });
 
-store.on('connected', function() {
-  store.client; // The underlying MongoClient object from the MongoDB driver
+store.on('connected', () => {
+    store.client; // The underlying MongoClient object from the MongoDB driver
 });
 
 // Catch errors
-store.on('error', function(error) {
+store.on('error', (error) => {
 });
 
-app.use(require('express-session')({
-  secret: 'This is a secret',
-  cookie: {
-    maxAge: 1000 * 60 * 60 * 24 * 7 // 1 week
-  },
-  store: store,
-  // Boilerplate options, see:
-  // * https://www.npmjs.com/package/express-session#resave
-  // * https://www.npmjs.com/package/express-session#saveuninitialized
-  resave: true,
-  saveUninitialized: true
+app.use(session({
+    secret: 'This is a secret',
+    cookie: {
+        maxAge: 1000 * 60 * 60 * 24 * 7 // 1 week
+    },
+    store,
+    // Boilerplate options, see:
+    // * https://www.npmjs.com/package/express-session#resave
+    // * https://www.npmjs.com/package/express-session#saveuninitialized
+    resave: true,
+    saveUninitialized: true
 }));
 
-app.get('/', function(req, res) {
-  res.send('Hello ' + JSON.stringify(req.session));
+app.get('/', (req, res) => {
+    res.send('Hello ' + JSON.stringify(req.session));
 });
 
-const server = app.listen(3000);
+app.listen(3000);
diff --git a/types/connect-mongodb-session/index.d.ts b/types/connect-mongodb-session/index.d.ts
index 4a49a1c09d6ee3..763250cfa0069b 100644
--- a/types/connect-mongodb-session/index.d.ts
+++ b/types/connect-mongodb-session/index.d.ts
@@ -1,31 +1,34 @@
-// Type definitions for connect-mongodb-session
+// Type definitions for connect-mongodb-session 2.4
 // Project: https://github.com/mongodb-js/connect-mongodb-session#readme
 // Definitions by: Nattapong Sirilappanich <https://github.com/NattapongSiri>
+//                 Ravi van Rooijen <https://github.com/HoldYourWaffle>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// Minimum TypeScript Version: 3.2
-
-/// <reference types="express-session" />
 
 import session = require('express-session');
-import * as express from 'express';
-import {MongoClient, MongoClientOptions} from 'mongodb'
+import { MongoClient, MongoClientOptions } from 'mongodb';
+
+export = ConnectMongoDBSession;
 
-declare function connect(fn : (options?: session.SessionOptions) => express.RequestHandler) : connectMongodbSession.MongoDBStore
+declare function ConnectMongoDBSession(fn: typeof session): typeof ConnectMongoDBSession.MongoDBStore;
 
-declare namespace connectMongodbSession {
-    export interface MongoDBStore extends session.Store {
-        client : MongoClient
-        new(connection?: ConnectionInfo, callback?: (error : Error) => void) : MongoDBStore
+declare namespace ConnectMongoDBSession {
+    class MongoDBStore extends session.Store {
+        constructor(connection?: MongoDBSessionOptions, callback?: (error: Error) => void);
+        client: MongoClient;
+
+        get(sid: string, callback: (err: any, session?: session.SessionData | null) => void): void;
+        set(sid: string, session: session.SessionData, callback?: (err?: any) => void): void;
+        destroy(sid: string, callback?: (err?: any) => void): void;
+        all(callback: (err: any, obj?: session.SessionData[] | { [sid: string]: session.SessionData; } | null) => void): void;
+        clear(callback?: (err?: any) => void): void;
     }
 
-    export interface ConnectionInfo {
-        idField? : string
-        collection : string
-        connectionOptions?: MongoClientOptions
-        databaseName?: string
-        expires?: number
-        uri : string
+    interface MongoDBSessionOptions {
+        uri: string;
+        collection: string;
+        expires?: number;
+        databaseName?: string;
+        connectionOptions?: MongoClientOptions;
+        idField?: string;
     }
 }
-
-export = connect
diff --git a/types/connect-mongodb-session/tslint.json b/types/connect-mongodb-session/tslint.json
index 18368ef548249a..f93cf8562ad24d 100644
--- a/types/connect-mongodb-session/tslint.json
+++ b/types/connect-mongodb-session/tslint.json
@@ -1,17 +1,3 @@
 {
-    "extends": "dtslint/dt.json",
-    "rules": {
-        "dt-header": false,
-        "no-misused-new": false,
-        "no-reference-import": false,
-        "no-var-keyword": false,
-        "no-var-requires": false,
-        "object-literal-shorthand": false,
-        "only-arrow-functions": false,
-        "prefer-const": false,
-        "semicolon": false,
-        "strict-export-declare-modifiers": false,
-        "typedef-whitespace": false,
-        "whitespace": false
-    }
+    "extends": "dtslint/dt.json"
 }