H1B extension with approved i-140 Job Description change

Hello, I am up for my H1b extension this year with approved I-140. My employer, Job Title remains the same but the job description changes.
Does this mean new PERM need to be resubmitted or just H1b extensions with new Job Description will be enough?

No need for new PERM as it is a future job and you may end up changing employers before you can file AOS.

Thanks for your prompt response.

My apologies for replying back late.