diff --git a/composer.json b/composer.json
index 2f582a5..a240ee5 100644
--- a/composer.json
+++ b/composer.json
@@ -41,7 +41,7 @@
     "ext-json": "*",
     "squizlabs/php_codesniffer": "^3.8",
     "jchook/phpunit-assert-throws": "^1.0",
-    "phpunit/phpunit": "^10.5.5",
+    "phpunit/phpunit": "^11.0.0",
     "phpcompatibility/php-compatibility": "^9.3",
     "dealerdirect/phpcodesniffer-composer-installer": "^1.0.0",
     "roave/security-advisories": "dev-latest"