Estimated tax estimate for next year seems high

In 2016, I paid the estimated taxes that turbotax suggested, and I am receiving a pretty big refund. The refund is equal to about half of the estimated taxes that I paid throughout the year. Turbotax is recommending a similar amount of estimated tax for 2017, but this seems like too much based on my 2016 refund. Should I reduce the estimated tax payments based on this?