diff --git a/composer.json b/composer.json
index 1f9b563..5b27fce 100644
--- a/composer.json
+++ b/composer.json
@@ -29,7 +29,7 @@
     },
     "require-dev": {
         "orchestra/testbench": "^3.7.7 || ^4 || ^5",
-        "phpunit/phpunit": "^7.5.4 || ^8.3",
+        "phpunit/phpunit": "^7.5.4 || ^8.3 || ^9.0",
         "ext-sqlite3": "*"
     },
     "autoload": {