diff --git a/composer.json b/composer.json
index eb1baf9..a0d2198 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,7 @@
     },
     "require-dev": {
         "phpstan/phpstan": "^1.5.6 || ^2.0.0",
-        "phpunit/phpunit": "^9.3.3 || ^10.0 || ^11.0 || ^12.0",
+        "phpunit/phpunit": "^9.3.3 || ^10.0 || ^11.0 || ^12.0 || ^13.0",
         "zing/coding-standard": "^7.0"
     },
     "autoload": {