[otrs] How to migrate from 3.1.10 to 3.3.4

Hi guys, I want to migrate from my 3.1.10 system to 3.3.4 ( new server). I have tried the database dump, but i see it is not working properly i.e. in package manager on 3.3.4 with database restored from 3.1.10 , i am still packages 3.1.10 version that is from the old system. I only intend to keep the tickets data, CMDB and related data. Thanks