W4 Help to Avoid Owing So Much Federal Tax

Hello, for the last two years we have owed over $5,000 in federal taxes. How should we adjust our W4's so we don't owe so much?

I make $150,000/year. My W4 is married, filing jointly and claiming 2 dependents.  I do not have the box 2 (c) on W4 checked. Should I? 

My wife makes $ $75,500/year and she is filing single and claiming 1.