diff --git a/composer.json b/composer.json
index 1f9b563..d3956cb 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
         "symfony/cache": "^4.3 || ^5"
     },
     "require-dev": {
-        "orchestra/testbench": "^3.7.7 || ^4 || ^5",
+        "orchestra/testbench": "^3.7.7 || ^4 || ^5 || ^6",
         "phpunit/phpunit": "^7.5.4 || ^8.3",
         "ext-sqlite3": "*"
     },