diff --git a/composer.json b/composer.json
index 6ffda9f..d45b5b1 100644
--- a/composer.json
+++ b/composer.json
@@ -10,11 +10,11 @@
     }
   ],
   "require": {
-    "php": "^7.2",
-    "guzzlehttp/guzzle": "^6.3 | ^7.0"
+    "php": "^7.4 || ^8.0",
+    "guzzlehttp/guzzle": "^7.0"
   },
   "require-dev": {
-    "phpunit/phpunit": "^8.5"
+    "phpunit/phpunit": "^9.5"
   },
   "autoload": {
     "psr-4": {