Purchase JR Pass use Old Passport No

Dear Sir / Madam,

The above matter refers.

I will change the new Passport by next month If I use old Passport No. purchase JR Pass. Is It will make my JR Pass Not valid use or Exchange.

Question is any problem I use passport no and Reach Japan Use New Passport No to exchange the JR Pass?

Kindly assist.

Regards.

Bee Kuan