diff --git a/composer.json b/composer.json
index 2dbd381..c1bdbb0 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
   },
   "require-dev": {
     "laminas/laminas-coding-standard": "^2.5",
-    "phpunit/phpunit": "^10.5",
+    "phpunit/phpunit": "^11.0",
     "psalm/plugin-phpunit": "^0.19",
     "vimeo/psalm": "^5.25"
   },