diff --git a/phpunit.xml b/phpunit.xml
index 180b4cd607..77a1252564 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -1,4 +1,7 @@
-<phpunit bootstrap="vendor/autoload.php">
+<phpunit
+    bootstrap="vendor/autoload.php"
+    defaultTestSuite="unit"
+>
   <testsuites>
     <testsuite name="unit">
       <directory>tests/unit</directory>
@@ -7,4 +10,4 @@
       <directory>tests/integration</directory>
     </testsuite>
   </testsuites>
-</phpunit>
\ No newline at end of file
+</phpunit>