Taxes owing on CRA higher than what Turbotax shows

I have a very basic tax return. I have interest income and dividend income. 

 

The CRA is showing I owe about $2,000 more than what Turbotax calculated.

 

The express NOA says "Because of a calculation error, we changed your federal tax payable to $4,888.60. As a result, your total payable has changed." 

 

What calculation error?