Go to the Datasets page and find your dataset

There are two datasets: The original dataset, and one that is named with a ” – Enriched”
On the Original dataset, click the three dots on the right side.
Select “Update Dataset” and then choose “Update Dataset (CSV)”

After you go through the data load screens, you should get a screen like this:

After you click “Save” all you analyses and dashboards will be automatically updated.