diff --git a/composer.json b/composer.json
index b9e6e15..d77a3bb 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
         "phpstan/phpstan": "^1.12.0",
         "phpstan/phpstan-phpunit": "^1.0.0",
         "phpstan/phpstan-strict-rules": "^1.0.0",
-        "phpunit/phpunit": "^11.0.0",
+        "phpunit/phpunit": "^11.3.0",
         "squizlabs/php_codesniffer": "^3.7.0",
         "woohoolabs/coding-standard": "^2.4.0",
         "woohoolabs/releaser": "^1.2.0"
diff --git a/composer.lock b/composer.lock
index 0aea306..23f8402 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "2b4cbd79fa2bde199fa260d37911e070",
+    "content-hash": "cdb3ee425de6ab7a2691480281361ac7",
     "packages": [
         {
             "name": "laminas/laminas-diactoros",