Hi BlessedSRT!  Congratulations on your newest one!  It is always a good idea to update your Form W-4 when you have a life change.  There is a W-4 Calculator that will take you step-by-step through the worksheet,

https://turbotax.intuit.com/tax-tools/calculators/w4/

 As of today, for tax year 2022, the Child Tax Credit has reverted to $2,000 per child dependent 16 and younger, with only $1,500 refundable.   Also, you must have earned income of at least $2,500.

Once you complete the form, give it to your employer. Then, keep a close eye on your next few paychecks to see how the changes impacted your federal income tax withholding.

Hope you find this helpful!