How to update a table with data from another table in Alasql

Question

I'm using alasql and I am trying to update a table with data from another table, but without success.

Let's say I have a tableA as the one underneath

id	Age
1	25
2	31

And a tableB like this

id	newAge
1	26
2	32

I tried the code below, without success, and I'm stuck.

UPDATE
    tableA
INNER JOIN 
    tableB 
ON 
    tableA.id = tableB.Id 
SET
    tableA.age = tableB.newAge 

Hope you can help. Thanks!