Stripped oil drain plug, how to fix? 2012 Sportsman 850

Well my fears came true, how do I fix a stripped oil drain? Has anyone rethread it and used a bigger plug? any help would be appreciated!

The screw just keeps spinning, I was dripping oil a couple years ago out of the bolt and I can gave it an extra crank, guessing that is when it happened, but it held oil just fine the last 2 years... It came out tight and went back in tight, but it just keeps spinning now.

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