Increasing Credit Card Limit?

Increasing Credit Card Limit?

I have a Visa card through my credit union that I've had for probably around 6 years. I charge EVERYTHING to my card (points!) and never carry a balance. I have a good credit score and own my own home. Every now and then I'll get a message from my CU asking if I'd like to increase my credit limit on my card. I got one today - my limit is $6000 and they're offering to increase it to $8000. Now, I don't NEED an $8000 credit limit but I'm wondering if increasing it would be beneficial for my credit rating? Or am I better off keeping it at $6k?
okra

okra

Almost frost

Almost frost

Sunflower stems ?

Sunflower stems ?

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Summer Blooms

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My Room

Morning mandevilla

Morning mandevilla