diff --git a/composer.json b/composer.json
index e3d6054..f655dd2 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
     "doctrine/coding-standard": "^12.0",
     "mikey179/vfsstream": "^1.6.11",
     "phpbench/phpbench": "^1.2",
-    "phpunit/phpunit": "^10.3",
+    "phpunit/phpunit": "^10.5.20",
     "psalm/plugin-phpunit": "^0.19.0",
     "vimeo/psalm": "5.23.1"
   },
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 53814cc..324d8cd 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.3/phpunit.xsd"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.5/phpunit.xsd"
          bootstrap="vendor/autoload.php"
          cacheResultFile=".cache/phpunit/test-results"
          executionOrder="depends,defects"