diff --git a/example.js b/example.js
index f00b130..065fd12 100644
--- a/example.js
+++ b/example.js
@@ -2,7 +2,11 @@ const { Client, Location, List, Buttons, LocalAuth } = require('./index');
 
 const client = new Client({
     authStrategy: new LocalAuth(),
-    puppeteer: { headless: false }
+    // proxyAuthentication: { username: 'username', password: 'password' },
+    puppeteer: { 
+        // args: ['--proxy-server=proxy-server-that-requires-authentication.example.com'],
+        headless: false
+    }
 });
 
 client.initialize();
diff --git a/index.d.ts b/index.d.ts
index 23ba35c..38d2ebb 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -387,7 +387,9 @@ declare namespace WAWebJS {
         userAgent?: string
         /** Ffmpeg path to use when formating videos to webp while sending stickers 
          * @default 'ffmpeg' */
-        ffmpegPath?: string
+        ffmpegPath?: string,
+        /** Object with proxy autentication requirements @default: undefined */
+        proxyAuthentication?: {username: string, password: string} | undefined
     }
 
     /**
diff --git a/src/Client.js b/src/Client.js
index d0c949c..fef8e4c 100644
--- a/src/Client.js
+++ b/src/Client.js
@@ -29,6 +29,7 @@ const NoAuth = require('./authStrategies/NoAuth');
  * @param {string} options.userAgent - User agent to use in puppeteer
  * @param {string} options.ffmpegPath - Ffmpeg path to use when formating videos to webp while sending stickers 
  * @param {boolean} options.bypassCSP - Sets bypassing of page's Content-Security-Policy.
+ * @param {object} options.proxyAuthentication - Proxy Authentication object.
  * 
  * @fires Client#qr
  * @fires Client#authenticated
@@ -102,6 +103,10 @@ class Client extends EventEmitter {
             browser = await puppeteer.launch({...puppeteerOpts, args: browserArgs});
             page = (await browser.pages())[0];
         }
+
+        if (this.options.proxyAuthentication !== undefined) {
+            await page.authenticate(this.options.proxyAuthentication);
+        }
       
         await page.setUserAgent(this.options.userAgent);
         if (this.options.bypassCSP) await page.setBypassCSP(true);
diff --git a/src/util/Constants.js b/src/util/Constants.js
index 97512c1..aa1005d 100644
--- a/src/util/Constants.js
+++ b/src/util/Constants.js
@@ -13,7 +13,8 @@ exports.DefaultOptions = {
     takeoverTimeoutMs: 0,
     userAgent: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.67 Safari/537.36',
     ffmpegPath: 'ffmpeg',
-    bypassCSP: false
+    bypassCSP: false,
+    proxyAuthentication: undefined
 };
 
 /**