Java and HSQLDB, how to add column automatically after update

I have an application in Java Spring using HSQLDB database.

For an evolution, i have to add a column to an existing table. So, I have done what I have to do (adding the attribute in the entity class with the info) but when i deploy my new app in tomcat, the database is not updated and i can't start my app.

Is it possible to add the column automatically?

Thank you for your help.