   end
 
   defp parse_dep({app, source}) when is_tuple(source) do
-    parse_dep({app, ">= 0.0.0", source, []})
+    parse_dep({app, nil, source, []})
   end
 
   defp parse_dep({app, req, source}) do

    {app, compile_req(req), mix_opts}
  end

  defp compile_req(req) do
    case Regex.compile(List.to_string(req)) do
      {:ok, re} ->

  end

  defp parse_dep(app) when is_atom(app) do
    {app, ">= 0.0.0"}
  end

  defp parse_dep({app, req}) when is_list(req) do
