diff --git a/composer.json b/composer.json
index 422468f..e913bf4 100644
--- a/composer.json
+++ b/composer.json
@@ -16,10 +16,10 @@
         }
     ],
     "require": {
-        "php" : "^7.0"
+        "php": "^7.0|^8.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^6.5"
+        "phpunit/phpunit": "^9.3"
     },
     "autoload": {
         "psr-4": {