How can update a JWT on a current client connection?

[nicoclauss]

In my case, I use the JWT Authentication method. I have a generated token from a IDP with over the authentication code flow.
The token has a specific lifespan. After the lifespan I create a new token over the refresh flow.
How can update the new refresh token in the open connection?
If the token is not updated, an "invalid credential" error is raised.