diff --git a/composer.json b/composer.json
index b52fe67..ece1d10 100644
--- a/composer.json
+++ b/composer.json
@@ -7,8 +7,8 @@
         "league/flysystem-azure-blob-storage": "^0.1.6"
     },
     "require-dev": {
-        "orchestra/testbench": "^4.0",
-        "phpunit/phpunit": "^8.0",
+        "orchestra/testbench": "^6.0",
+        "phpunit/phpunit": "^9.3",
         "mockery/mockery": "^1.0",
         "php-coveralls/php-coveralls": "^2.1",
         "psy/psysh": "^0.9.9",