# How do I upgrade tor?

**URL:** https://forum.torproject.org/t/how-do-i-upgrade-tor/19344
**Category:** Relay Operator
**Created:** [June 11, 2025, 8:44am UTC](https://forum.torproject.org/t/how-do-i-upgrade-tor/19344 "2025-06-11T08:44:32Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![antsir](https://forum.torproject.org/letter_avatar_proxy/v4/letter/a/9fc348/32.png) [@antsir](https://forum.torproject.org/u/antsir)
#### Post date: [June 11, 2025, 8:44am UTC](https://forum.torproject.org/t/how-do-i-upgrade-tor/19344/1 "2025-06-11T08:44:32Z")

</div>

I used an old version of Tor to build a relay. I want to upgrade to the latest version of Tor. How can I do this? I am using the default Tor repository of Debian.

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<div class="post-metadata">

### Author: ![atari](https://forum.torproject.org/user_avatar/forum.torproject.org/atari/32/392_2.png) [@atari](https://forum.torproject.org/u/atari)
#### Post date: [June 11, 2025, 11:44am UTC](https://forum.torproject.org/t/how-do-i-upgrade-tor/19344/2 "2025-06-11T11:44:23Z")

</div>

Add the following to your `/etc/apt/sources.list`:

```auto
#### backports 
deb http://deb.debian.org/debian bookworm-backports main contrib non-free non-free-firmware
deb-src http://deb.debian.org/debian bookworm-backports main contrib non-free non-free-firmware

```

```auto
apt-get clean
apt-get update
apt-get upgrade
apt-get dist-upgrade

```

```auto
apt-get install tor/bookworm-backports

```

Should be fine then…