diff --git a/composer.json b/composer.json
index cb7ac4a..5153bd8 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
     "nikic/php-parser": "^4.0"
   },
   "require-dev": {
-    "phpunit/phpunit": "^9.6.18",
+    "phpunit/phpunit": "^9.3",
     "php-coveralls/php-coveralls": "^2.2",
     "psalm/phar": "5.21.1"
   },