diff --git a/composer.json b/composer.json
index 4aff7fb..2c5a4a4 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
     "require-dev": {
         "ock/testing": "self.version",
         "phpstan/phpstan": "2.0.x-dev",
-        "phpunit/phpunit": "^9.5",
+        "phpunit/phpunit": "^10.5.38",
         "symfony/yaml": "^7.1.5",
         "symfony/config": "^7.1.1"
     },