What is certain if you can do without risking damage to anything is to replace the capacitor with one of the same capacity in microfarads but of GREATER voltage. If you replace it with a lower voltage you can burst, spill, or simply lose the capacity of microfarads and make the circuit not work properly. When using a higher voltage capacitor, the behavior of the circuit is not modified, but if the value of the microfarads does vary. On the other hand, when using a capacitor with less voltage value, in principle, the operation of the circuit is not modified but the capacitor can be heated and / or burst which causes it to lose the capacity of microfarads and modify the operation of the system.