How to refresh token with postman

How do I use postman tool to get new tokens by using refresh token.I am getting 200 success but all I see is only empty response
This is my HTTP request information

POST /token?grant_type=refresh_token&refresh_token={{refresh_token}} HTTP/1.1
Authorization: Basic <redacted>
Content-Type: application/x-www-form-urlencoded

The refresh token and grant type need to be form params in the body not the query string

Thanks for the reply.I found out what I was doing wrong.I tried in every possible way of sending grant_type and refresh_token, as query parameters and also form body but the main mistake was I didn’t encode clientId and client secret properly using