diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 33de594..b361d2a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,11 +16,11 @@ jobs:
       fail-fast: false
       matrix:
         operating-system: [ubuntu-latest]
-        php-versions: ['7.3', '7.4', '8.0']
+        php-versions: ['7.3', '7.4', '8.0', '8.1', '8.2']
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Setup PHP, with composer and extensions
         uses: shivammathur/setup-php@v2 #https://github.com/shivammathur/setup-php
@@ -28,22 +28,23 @@ jobs:
           php-version: ${{ matrix.php-versions }}
           coverage: pcov
           tools: composer:v2
-          extensions: php-imagick
+          extensions: imagick
         env:
-          COMPOSER_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Get composer cache directory
-        id: composercache
-        run: echo "::set-output name=dir::$(composer config cache-files-dir)"
+        id: composer-cache
+        run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
 
       - name: Setup problem matchers
         run: |
           echo "::add-matcher::${{ runner.tool_cache }}/php.json"
           echo "::add-matcher::${{ runner.tool_cache }}/phpunit.json"
+
       - name: Cache composer dependencies
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
-          path: ${{ steps.composercache.outputs.dir }}
+          path: ${{ steps.composer-cache.outputs.dir }}
           key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
           restore-keys: ${{ runner.os }}-composer-
 
diff --git a/README.md b/README.md
index 513a55b..6372a93 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,9 @@
 # CC Icons
 
 This is a PHP class that generates an image based on a
-list of supported credit card types. It makes it easy to
-get an image showing all supported payment types for a
-payment processor.
+list of supported credit card or cryptocurrency types.
+It makes it easy to get an image showing all supported
+payment types for a payment processor.
 
 ## Installation
 
@@ -42,16 +42,26 @@ to the image that was created. By default, each image is
 ## List of Supported Icons
 
 Icons should be specified as a single word, case-insensitive
-- AMEX
-- Dankort
-- DinersClub
-- Discover
-- JCB
-- Maestro -- Aliases: `Switch`, `Solo`
-- Mastercard -- Alias: `MC`
-- PostePay
-- UnionPay
-- Visa -- Aliases: `Delta`, `UKE`
+- Credit Cards:
+    - `AMEX`
+    - `Dankort`
+    - `DinersClub`
+    - `Discover`
+    - `JCB`
+    - `Maestro` -- Aliases: `Switch`, `Solo`
+    - `Mastercard` -- Alias: `MC`
+    - `PostePay`
+    - `UnionPay`
+    - `Visa` -- Aliases: `Delta`, `UKE`
+- Cryptocurrencies:
+    - `BTC` (Bitcoin)
+    - `LTC` (Litecoin)
+    - `BCH` (Bitcoin Cash)
+    - `BNB` (Binance Coin)
+    - `ETH` (Ethereum)
+    - `USDT` (Tether)
+    - `USDC` (USD Coin)
+
 
 ## Default Layouts
 
diff --git a/src/CCImageMaker.php b/src/CCImageMaker.php
index 27a9de0..6d1c5c3 100644
--- a/src/CCImageMaker.php
+++ b/src/CCImageMaker.php
@@ -22,7 +22,7 @@ class CCImageMaker
     /** @var array */
     private $layout;
 
-    /* Give every CC icon a constant to reference */
+    /* Give every CC icon an ID to reference */
     const AMEX = 1;
     const DANKORT = 2;
     const DINERSCLUB = 3;
@@ -34,8 +34,18 @@ class CCImageMaker
     const UNIONPAY = 9;
     const VISA = 10;
 
+    /* Give every cryptocurrency icon an ID to reference */
+    const BTC = 1001;
+    const LTC = 1002;
+    const BCH = 1003;
+    const BNB = 1004;
+    const ETH = 1005;
+    const USDT = 1006;
+    const USDC = 1007;
+
     /** Link supported CC string representations to constants */
     protected static $cc_strings = [
+        // Credit Cards
         "VISA"       => self::VISA,
         "MASTERCARD" => self::MASTERCARD,
         "MC"         => self::MASTERCARD,
@@ -50,11 +60,21 @@ class CCImageMaker
         "AMEX"       => self::AMEX,
         "JCB"        => self::JCB,
         "UNIONPAY"   => self::UNIONPAY,
-        "POSTEPAY"   => self::POSTEPAY      // Italian Post Office
+        "POSTEPAY"   => self::POSTEPAY,      // Italian Post Office
+
+        // Cryptocurrencies
+        "BTC"        => self::BTC,
+        "LTC"        => self::LTC,
+        "BCH"        => self::BCH,
+        "BNB"        => self::BNB,
+        "ETH"        => self::ETH,
+        "USDT"       => self::USDT,
+        "USDC"       => self::USDC,
     ];
 
-    /** Link credit cards to their file name in src/icons/ */
+    /** Link IDs to their file name in src/icons/ */
     protected static $supported_cc_types = [
+        // Credit Cards
         self::AMEX       => "amex",
         self::DANKORT    => "dankort",
         self::DINERSCLUB => "dinersclub",
@@ -64,7 +84,16 @@ class CCImageMaker
         self::MASTERCARD => "mastercard",
         self::POSTEPAY   => "postepay",
         self::UNIONPAY   => "unionpay",
-        self::VISA       => "visa"
+        self::VISA       => "visa",
+
+        // Cryptocurrencies
+        self::BTC        => "btc",
+        self::LTC        => "ltc",
+        self::BCH        => "bch",
+        self::BNB        => "bnb",
+        self::ETH        => "eth",
+        self::USDT       => "usdt",
+        self::USDC       => "usdc",
     ];
 
     /** Width/height of the icon files in src/icons, must be divisible by 4 */
diff --git a/src/icons/bch.png b/src/icons/bch.png
new file mode 100644
index 0000000..588df18
Binary files /dev/null and b/src/icons/bch.png differ
diff --git a/src/icons/bnb.png b/src/icons/bnb.png
new file mode 100644
index 0000000..775e640
Binary files /dev/null and b/src/icons/bnb.png differ
diff --git a/src/icons/btc.png b/src/icons/btc.png
new file mode 100644
index 0000000..643cd34
Binary files /dev/null and b/src/icons/btc.png differ
diff --git a/src/icons/eth.png b/src/icons/eth.png
new file mode 100644
index 0000000..d70b50a
Binary files /dev/null and b/src/icons/eth.png differ
diff --git a/src/icons/ltc.png b/src/icons/ltc.png
new file mode 100644
index 0000000..21b2c35
Binary files /dev/null and b/src/icons/ltc.png differ
diff --git a/src/icons/usdc.png b/src/icons/usdc.png
new file mode 100644
index 0000000..0ffc2c1
Binary files /dev/null and b/src/icons/usdc.png differ
diff --git a/src/icons/usdt.png b/src/icons/usdt.png
new file mode 100644
index 0000000..1255baa
Binary files /dev/null and b/src/icons/usdt.png differ
diff --git a/tests/CCImageMakerTest.php b/tests/CCImageMakerTest.php
index 1e1e4e3..9995c63 100644
--- a/tests/CCImageMakerTest.php
+++ b/tests/CCImageMakerTest.php
@@ -72,7 +72,11 @@ public function makeImageProvider()
                 [400, 200],
                 10,
                 [3 => [3]]
-            ]
+            ],
+            'Cryptocurrencies LTC and BCH' => [
+                'cryptocurrencies.png',
+                [CCImageMaker::LTC, CCImageMaker::BCH],
+            ],
         ];
     }
 
diff --git a/tests/images/cryptocurrencies.png b/tests/images/cryptocurrencies.png
new file mode 100644
index 0000000..c048f6d
Binary files /dev/null and b/tests/images/cryptocurrencies.png differ
diff --git a/tests/regenerate-fixtures.php b/tests/regenerate-fixtures.php
index 61cc5c7..86f00cd 100644
--- a/tests/regenerate-fixtures.php
+++ b/tests/regenerate-fixtures.php
@@ -2,7 +2,7 @@
 
 use Vectorface\CCIcons\CCImageMaker;
 
-require 'vendor/autoload.php';
+require __DIR__ . '/../vendor/autoload.php';
 
 $regular_images = [
     '1-icon'  => ['AMEX'],
@@ -11,7 +11,8 @@
     '4-icon'  => ['UNIONPAY', 'DISCOVER', 'MAESTRO', 'AMEX'],
     '5-icon'  => ['VISA', 'DINERSCLUB', 'AMEX', 'DISCOVER', 'UNIONPAY'],
     '6-icon'  => ['MASTERCARD', 'JCB', 'MAESTRO', 'UNIONPAY', 'AMEX', 'DISCOVER'],
-    'empty'   => []
+    'empty'   => [],
+    'cryptocurrencies' => ['LTC', 'BCH'],
 ];
 
 $special_images = [
@@ -38,7 +39,7 @@
         'size'    => [400, 200],
         'padding' => 10,
         'layout'  => [3]
-    ]
+    ],
 ];
 
 foreach ($regular_images as $filename => $types) {