Make Up Tests: Should I alter the questions?

I'm teaching a unit this semester that involves an in-class test. The students will be required to conduct a textual analyse of a video using the themes/unit literature etc to help formulate their responses. This is for a sociology unit.

It is a large unit and there will undoubtedly be students that will need to sit a make-up test at a later date (as long as they have appropriate documentation).

I will change the video for the second test, but I was wondering, should I also change the questions on the make-up test? Or should I leave the test questions? They are not straight correct/incorrect answers but rather, questions that ask students to use critical thinking and analysis skills to analyse the video contents in relation to the unit themes (short essay style).

There are no policies or procedures at my university that highlight what a make-up test should entail, so I'm at a bit of a loss as to what might be the best way to go about this to ensure fairness to both students who take the test on-time, and those who sit a make-up.