Powerpacks version 9.0.0.0 versus version 10.0.0.0

I have some projects written in visualbasic 2008 and converted to 2010
They still reference a Microsoft.visualBasic.PowerPacks.Vs.dll  version 9.0.0.0
New projects reference  a .dll version 10.0.0.0
How do I make the older projects to reference the updated .dll