Awesome if you are sitting upon mountains of Dilithium and need all the Zen in the world.
Nothing to worry about. It is an economy, just like any other. Eventually, people will stop paying cash for Zen because they will see it easier to trade dilithium for it. When enough people do that, the supply will shrink, demand will outnumber supply and the price will change to a new, higher, equilibrium point. This should happen in less than two months, tops.