diff --git a/composer.json b/composer.json
index 9adfc0c3..5403f23b 100644
--- a/composer.json
+++ b/composer.json
@@ -30,7 +30,7 @@
         "doctrine/coding-standard": "^12.0.0",
         "estahn/phpunit-json-assertions": "^4.0",
         "php-standard-library/psalm-plugin": "^2.3.0",
-        "phpunit/phpunit": "^11.5.7",
+        "phpunit/phpunit": "^12.3.8",
         "psalm/plugin-phpunit": "^0.19.2",
         "roave/infection-static-analysis-plugin": "^1.36.0",
         "roave/security-advisories": "dev-master",