diff --git a/composer.json b/composer.json
index 535acad..837723b 100644
--- a/composer.json
+++ b/composer.json
@@ -18,13 +18,13 @@
         "psr/http-message": "^1.0 || ^2.0"
     },
     "suggest": {
-        "guzzlehttp/guzzle": "^6.0",
+        "guzzlehttp/guzzle": "^7.4.5",
         "laminas/laminas-diactoros": "^1.8 || ^2.2",
         "symfony/security": "^4.0 || ^5.0"
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.2.1",
-        "guzzlehttp/guzzle": "^6.0",
+        "guzzlehttp/guzzle": "^7.4.5",
         "nyholm/psr7": "^1.0",
         "php-coveralls/php-coveralls": "^2.2",
         "phpmd/phpmd": "^2.0",