diff --git a/src/MetaData.php b/src/MetaData.php
index 5962682..b8a527f 100644
--- a/src/MetaData.php
+++ b/src/MetaData.php
@@ -42,7 +42,7 @@ final class MetaData
         '5.2' => ['8.1', '8.2', '8.3'],
         '5.3' => ['8.1', '8.2', '8.3'],
         '5' => ['8.1', '8.2', '8.3'],
-        '6' => ['8.3'],
+        '6' => ['8.3', '8.4'],
     ];
 
     /**