Not compatible with graylog 3

[hobgoblinsmaster]

When tying to import in graylog 3, there is the following error:

Error importing content pack, please ensure it is a valid JSON file. Check your Graylog logs for more information.
Null id at [Source: org.glassfish.jersey.message.internal.ReaderInterceptorExecutor$UnCloseableInputStream@33bc6cf6; line: 474, column: 1] (through reference chain: org.graylog2.contentpacks.model.AutoValue_LegacyContentPack$Builder[“id”])

See also https://community.graylog.org/t/unable-to-import-content-packs-downloaded-from-marketplace/8732

Can you update this cool content_pack?