Mocking nodejs client with nock broken after new es client migration

Hello,
we are using nock to mock the ES requests towards our ES cluster on nodejs
We migrated recently our application running on nodejs from old legacy ES Client to the new one https://github.com/elastic/elasticsearch-js

Before client migration nock was able to intercept client triggered calls towards our ES cluster, while nock seems not able anymore to intercept requests towards the ES cluster when using the new es client linked above.

Is there any major change on ES client which could be impacting this?

Thank you in advance