Issues Upgrading DefectDojo from 2.52.3 to 2.56.3 with LDAP Package Installation in Docker

Hello team, I had deployed the opensource defectdojo 2.52.3 and now I was trying to upgrade it to 2.56.3, I simply pulled Nginx and django image and start the docker compose, here I didn't upgrade db version. My application gui start showing upgraded version. But in my previous version I mention ldap packages in requirement.txt and docker file as well for ad integration. As now I just pulled two new images but I have old docker file and requirement.txt as well as all old files. It's not installing ldap packages , can you please help me here with steps. //Bharat