diff -u b/modules/ubercart/tests/src/Kernel/Migrate/d6/ProductTest.php b/modules/ubercart/tests/src/Kernel/Migrate/d6/ProductTest.php
--- b/modules/ubercart/tests/src/Kernel/Migrate/d6/ProductTest.php
+++ b/modules/ubercart/tests/src/Kernel/Migrate/d6/ProductTest.php
@@ -50,6 +50,9 @@
       'd6_ubercart_product_type',
       'd6_language_content_settings',
       'd6_ubercart_language_content_settings',
+      'd6_ubercart_attribute_field',
+      'd6_ubercart_product_attribute',
+      'd6_ubercart_attribute_field_instance',
       'd6_ubercart_product_variation',
       'd6_node',
     ]);