diff --git a/composer.json b/composer.json
index 7c3812a..04878ae 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
     "php": ">=8.3 <=8.5"
   },
   "require-dev": {
-    "phpunit/phpunit": "^12.0"
+    "phpunit/phpunit": "^13.0"
   },
   "autoload": {
     "psr-4": {