You’ll likely have to do a CPFP transaction. Here is a resource:
https://docs.lightning.engineering/lightning-network-tools/lnd/unconfirmed-bitcoin-transactions
I recently had to do this on Ride the Lightning to bump a channel opening fee that I inadvertently made too low just because I didn’t understand the Thunderhub UI yet. It worked. Just make sure your fee for the new TX is set at roughly double the high priority fee and the miner will be incentivized to clear both. If you don’t go high enough this time around, it could get expensive.