diff --git a/composer.json b/composer.json
index 7fe13660..52199e70 100644
--- a/composer.json
+++ b/composer.json
@@ -43,7 +43,7 @@
         "laminas/laminas-json": "^3.6",
         "phpspec/prophecy": "^1.17.0",
         "phpspec/prophecy-phpunit": "^2.0.2",
-        "phpunit/phpunit": "^9.6.13",
+        "phpunit/phpunit": "^11.0.0",
         "webmozart/assert": "^1.11"
     },
     "suggest": {