diff --git a/phpunit.xml b/phpunit.xml
index 9572500a52..0e0511d501 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -9,6 +9,7 @@
          failOnPhpunitDeprecation="true"
          failOnRisky="true"
          failOnWarning="true"
+         executionOrder="defects"
          colors="true">
     <testsuites>
         <testsuite name="unit">