In this task, you are given a list of unique integers you need to swap the positions of maximum and minimum element in the list and return the updated list.

[68, 367, 282, 379, 289, 321, 305, 254, 426, 108, 287, 23, 402, 268, 461, 222, 24, 312, 144, 125]
[68, 367, 282, 379, 289, 321, 305, 254, 426, 108, 287, 461, 402, 268, 23, 222, 24, 312, 144, 125]