Stripped fuel pump bolt

when installing the fuel pump, the forward most bolt hole stripped. It sucked. Lol.

Fortunately it's the open backed hole, so it's best case scenerio I guess.

What's the best approach?

Throw a longer bolt all the way through and put a nut on the back side?

Helicoil?

Or tap the next size up?

All help is greatly appreciated as always. Thanks. Eric and Jason