diff --git a/composer.json b/composer.json
index e8fac9e..a4340a3 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
         "composer-plugin-api": "^2.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^12.5",
+        "phpunit/phpunit": "^13.4",
         "mockery/mockery": "^1.6",
         "composer/composer": "^2.0"
     },