diff --git a/README.md b/README.md
index 69d0d22d..bd97214f 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,11 @@ To get up and running with our PHP library quickly, follow [The GUIDE](https://g
 * https://github.com/bitpay/php-bitpay-client-v2/issues
 * https://support.bitpay.com
 
+### Requirements
+
+- PHP version: 8.0 / 8.1 / 8.2
+- PHP extensions: json, reflection
+
 ## Contribute
 
 To contribute to this project, please fork and submit a pull request.
diff --git a/composer.json b/composer.json
index 9b57a3f1..37e75e4f 100644
--- a/composer.json
+++ b/composer.json
@@ -12,11 +12,11 @@
   ],
   "homepage": "https://github.com/bitpay/php-bitpay-client-v2",
   "require": {
-    "bitpay/key-utils": "^1.1",
     "php": "^8.0 || ^8.1 || ^8.2",
-    "guzzlehttp/guzzle": "^7.0",
     "ext-json": "*",
     "ext-reflection": "*",
+    "bitpay/key-utils": "^1.1",
+    "guzzlehttp/guzzle": "^7.0",
     "symfony/yaml": "^5.4 || ^6.0 || ^6.1 || ^6.2",
     "netresearch/jsonmapper": "^4.1"
   },