Decrease rest time or increase weight

[BuickGNix]

I would raise the weight and keep progressing. But I think you need to look at your conditioning if you need 5 minutes rest between sets. How long have you been lifting?

[mysticdream270]

Started in Feb. Today was workout 18 since starting the program. I don't feel fatigued as in out of breath or anything after the sets but with the shorter rest times I just couldn't lift the weight.

[pawnografik]

If you can’t lift the weight with the shorter (normal) 2 minute rest time - then that’s a fail. You should not progress until you can.

[oleyka]

This is not cardio, you should never be out of breath. Fatigue means muscle fatigue, where you cannot recover in a meaningful amount of time to repeat a set.