Universal search keeps resetting

[anon(19759)]

I've downloaded the Google search apk and it installs just fine si I have universal search back, but it seems within a day or so it reverts back to the Google search without universal capabilities. I just install the apk again and it's fine for a day or two. How can I just keep the universal Google search intact? It doesn't show that it is ever updating anything for this app - it just mysteriously reverts to basic search.