# Upgrade milter manually

This tutorial describes how to upgrade milter program to the latest stable release manually, usually you should upgrade it with one click with iRedMail Enterprise Edition ("EE" for short).

- Find the latest release here: https://dl.iredmail.org/milter/. We use release `milter-v1.4.0-linux-amd64` for example here.
- Run commands below on EE server to upgrade and restart milter service:

    cd /usr/local/bin/
    wget https://dl.iredmail.org/milter/milter-v1.4.0-linux-amd64
    chown milter:milter milter-v1.4.0-linux-amd64
    chmod 0500 milter-v1.4.0-linux-amd64
    ln -sf milter-v1.4.0-linux-amd64 milter
    systemctl restart milter

That's all.