diff --git a/composer.json b/composer.json
index 837bf6c..cefb207 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,7 @@
         }
     },
     "require-dev": {
-        "phpunit/phpunit": "^11.5",
+        "phpunit/phpunit": "^13.1",
         "squizlabs/php_codesniffer": "^4.0",
         "phpstan/extension-installer": "^1.4",
         "phpstan/phpstan": "^2.0",