diff --git a/composer.json b/composer.json
index 2d57254..1a6be5a 100644
--- a/composer.json
+++ b/composer.json
@@ -15,12 +15,12 @@
         "symfony/process": "^4.4|^5.0",
         "symfony/console": "^4.4|^5.0",
         "guzzlehttp/guzzle": "^6.5",
-        "illuminate/support": "^6.18|^7.1",
+        "illuminate/support": "^6.18|^7.1|^8.0",
         "ext-json": "*"
     },
     "require-dev": {
         "mockery/mockery": "^1.3",
-        "phpunit/phpunit": "^8.5",
+        "phpunit/phpunit": "^8.5|^9.0",
         "roave/security-advisories": "dev-master",
         "symfony/var-dumper": "^4.4|^5.0"
     },