I may be wrong, but I believe in changing this you need to run `godep save` or something(?) to update `Godeps.json`, TravisCI failed:

```
$ godep go build -v ./...
hkdist/web.go:17:2: cannot find package "github.com/lib/pq" in any of:
	/home/travis/.gvm/gos/go1.2/src/pkg/github.com/lib/pq (from $GOROOT)
	/home/travis/gopath/src/github.com/heroku/hk/Godeps/_workspace/src/github.com/lib/pq (from $GOPATH)
	/home/travis/gopath/src/github.com/lib/pq
	/home/travis/.gvm/pkgsets/go1.2/global/src/github.com/lib/pq
godep: go exit status 1
```