You can change your Social Security Number in TurboTax by taking the following steps:
In your return, select "Personal Info"
On "Personal Info Summary" page you will see your personal details listed (SSN, Birthdate, Occupation, Resident State), as well as those of your husband
Click on "Edit" button to the right of your personal details
On "Your personal info" screen, find the Social Security number box, edit the number and click on Continue button
You will be returned to the "Personal Info Summary" page