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.

[37, 209, 296, 193, 425, 406, 464, 350, 100, 204, 67, 357, 132, 99, 127, 183, 338, 444, 169, 358]
[464, 209, 296, 193, 425, 406, 37, 350, 100, 204, 67, 357, 132, 99, 127, 183, 338, 444, 169, 358]