diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index cc4656e75..bb45b9abb 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -8,7 +8,7 @@
         failOnRisky="true"
         failOnWarning="true"
         colors="true"
-        xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.5/phpunit.xsd"
+        xsi:noNamespaceSchemaLocation="/vendor/phpunit/phpunit/phpunit.xsd"
         cacheDirectory=".phpunit.cache"
         requireCoverageMetadata="false"
 >