diff --git a/composer.json b/composer.json
index f5afa28..fb4edb1 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
     },
     "require-dev": {
         "orchestra/testbench": "^6.14.0",
-        "phpunit/phpunit": "^8.0|^9.0"
+        "phpunit/phpunit": "^9.5.3"
     },
     "autoload": {
         "psr-4": {