diff --git a/src/Configuration/RectorConfigBuilder.php b/src/Configuration/RectorConfigBuilder.php
index 310e823e52e..18a288209fc 100644
--- a/src/Configuration/RectorConfigBuilder.php
+++ b/src/Configuration/RectorConfigBuilder.php
@@ -739,7 +739,6 @@ public function withComposerBased(
         $setMap = [
             SetGroup::TWIG => $twig,
             SetGroup::DOCTRINE => $doctrine,
-            SetGroup::PHPUNIT => $phpunit,
             SetGroup::SYMFONY => $symfony,
             SetGroup::NETTE_UTILS => $netteUtils,
             SetGroup::LARAVEL => $laravel,
@@ -752,6 +751,11 @@ public function withComposerBased(
             }
         }
 
+        if ($phpunit) {
+            // single set, as every rule inside is bound to the installed PHPUnit version on its own
+            $this->sets[] = PHPUnitSetList::COMPOSER_BASED;
+        }
+
         return $this;
     }