diff --git a/src/DI.php b/src/DI.php
index 0ce28f3aef..557e98a801 100644
--- a/src/DI.php
+++ b/src/DI.php
@@ -39,7 +39,7 @@ use Psr\Log\LoggerInterface;
  * @method static LoggerInterface workerLogger()
  *
  */
-class DI
+abstract class DI
 {
 	const CLASS_MAPPING = [
 		'app'          => App::class,