diff --git a/composer.json b/composer.json
index b126b5b..d9cbb7d 100644
--- a/composer.json
+++ b/composer.json
@@ -6,7 +6,7 @@
 		"php": ">=8.2"
 	},
 	"require-dev": {
-		"phpunit/phpunit": "^9.6",
+		"phpunit/phpunit": "^13.0",
 		"yoast/phpunit-polyfills": "^3.0"
 	},
 	"config": {