diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index b992642..1e39d5c 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -5,7 +5,7 @@
     processIsolation="false"
     stopOnFailure="false"
     bootstrap="./tests/bootstrap.php"
-    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd"
+    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/11.1/phpunit.xsd"
 >
   <source>
     <include>