diff --git a/composer.json b/composer.json
index 2261b99..d87c7cf 100644
--- a/composer.json
+++ b/composer.json
@@ -5,7 +5,7 @@
     "require": {
       "openspout/openspout": "^3",
       "discoverygarden/dgi_migrate": "^1 || ^2",
-      "drupal/migrate_plus": "^4.2 || ^5.1",
+      "drupal/migrate_plus": "^4.2 || ^5.1 || ^6",
       "phpoffice/phpspreadsheet": "^1"
     }
 }