diff --git a/.travis.yml b/.travis.yml
index 7111012..24f877f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,8 @@ php:
   - 7.4
   - 8.0
   - 8.1
+  - 8.2
+  - 8.3
 
 before_script:
   - composer install -n --dev --prefer-source
diff --git a/README.md b/README.md
index 6fc95de..67e0956 100644
--- a/README.md
+++ b/README.md
@@ -5,10 +5,9 @@
 [![Build Status](https://app.travis-ci.com/dercoder/omnipay-webmoney.svg?branch=master)](https://app.travis-ci.com/github/dercoder/omnipay-webmoney)
 [![Coverage Status](https://coveralls.io/repos/dercoder/omnipay-webmoney/badge.svg?branch=master&service=github)](https://coveralls.io/github/dercoder/omnipay-webmoney?branch=master)
 
-[![Latest Stable Version](https://poser.pugx.org/dercoder/omnipay-webmoney/v/stable.png)](https://packagist.org/packages/dercoder/omnipay-webmoney)
-[![Total Downloads](https://poser.pugx.org/dercoder/omnipay-webmoney/downloads.png)](https://packagist.org/packages/dercoder/omnipay-webmoney)
-[![Latest Unstable Version](https://poser.pugx.org/dercoder/omnipay-webmoney/v/unstable.png)](https://packagist.org/packages/dercoder/omnipay-webmoney)
-[![License](https://poser.pugx.org/dercoder/omnipay-webmoney/license.png)](https://packagist.org/packages/dercoder/omnipay-webmoney)
+[![Latest Stable Version](https://img.shields.io/packagist/v/dercoder/omnipay-webmoney)](https://packagist.org/packages/dercoder/omnipay-webmoney)
+[![Total Downloads](https://img.shields.io/packagist/dt/dercoder/omnipay-webmoney)](https://packagist.org/packages/dercoder/omnipay-webmoney)
+[![License](https://img.shields.io/packagist/l/dercoder/omnipay-webmoney)](https://packagist.org/packages/dercoder/omnipay-webmoney)
 
 [Omnipay](https://github.com/omnipay/omnipay) is a framework agnostic, multi-gateway payment
 processing library for PHP 7.0+. This package implements [WebMoney](https://www.webmoney.az) support for Omnipay.
@@ -21,7 +20,7 @@ to your `composer.json` file:
 ```json
 {
     "require": {
-        "dercoder/omnipay-webmoney": "~4.0"
+        "dercoder/omnipay-webmoney": "^5.0"
     }
 }
 ```
diff --git a/src/Message/AbstractRequest.php b/src/Message/AbstractRequest.php
index 19a4356..af2e6b2 100644
--- a/src/Message/AbstractRequest.php
+++ b/src/Message/AbstractRequest.php
@@ -251,8 +251,22 @@ public function getCurrencyByPurse($purse)
                 return 'BYR';
             case 'X':
                 return 'BTC';
+            case 'T':
+                return 'USDT';
             default:
                 return null;
         }
     }
+
+    public function getCurrencies()
+    {
+        if ($this->currencies === null) {
+            $this->currencies = new \Money\Currencies\AggregateCurrencies([
+                new \Money\Currencies\CryptoCurrencies(),
+                new \Money\Currencies\ISOCurrencies(),
+            ]);
+        }
+
+        return $this->currencies;
+    }
 }
diff --git a/tests/Message/PurchaseRequestTest.php b/tests/Message/PurchaseRequestTest.php
index 388a012..97e7bab 100644
--- a/tests/Message/PurchaseRequestTest.php
+++ b/tests/Message/PurchaseRequestTest.php
@@ -87,6 +87,7 @@ public function testGetCurrencyByPurse()
         $this->assertSame('UZS', $this->request->getCurrencyByPurse('Y123428476799'));
         $this->assertSame('BYR', $this->request->getCurrencyByPurse('B123428476799'));
         $this->assertSame('BTC', $this->request->getCurrencyByPurse('X123428476799'));
+        $this->assertSame('USDT', $this->request->getCurrencyByPurse('T123428476799'));
         $this->assertNull($this->request->getCurrencyByPurse('A123428476799'));
     }