Anne - it all depends on whether the renewal lease is an extension of term of the existing lease (i.e. incorporating and extending the existing registrable term), or merely a new lease in its own right (albeit to the same tenant) taking effect after expiration of the existing lease but not registrable in its own right as it’s only 5 years.
Have a read of
PGs 25 and 28 for guidance depending on what the specific circumstances are