This is bars 5-6, right? Yeah, it's a bit of a stretch. I play it with my index barred across the first four strings at fret 2 (same position as it is in for the first 4 bars, so no need to move), ring finger fret 5 fourth string and pinky fret 5 second string. I can't think of an easier fingering.
I think the key, though, is hand & arm position. As I get to that phrase, my wrist moves away from the neck a bit and my hand rotates up a bit, and at the same time my elbow moves in towards my body and forward a bit. That gets my fingers at the proper angle to fret things cleanly. And, btw, the whole song is easier imo if you hold your guitar so you are closer to the headstock end--if you are already reaching out a ways to get to the frets, it's going to be much harder to get your wrist & arm in position for that passage.
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