# Installing older modular/mojo versions via pixi
**URL:** https://forum.modular.com/t/installing-older-modular-mojo-versions-via-pixi/2264
**Category:** Installation & Packaging
**Created:** [September 13, 2025, 12:55pm UTC](https://forum.modular.com/t/installing-older-modular-mojo-versions-via-pixi/2264 "2025-09-13T12:55:04Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@thomad](https://forum.modular.com/u/thomad)
#### Post date: [September 13, 2025, 12:55pm UTC](https://forum.modular.com/t/installing-older-modular-mojo-versions-via-pixi/2264/1 "2025-09-13T12:55:04Z")
Currently the newest stable release version is 25.5 and installing that via pixi works.
```bash
$ pixi add "mojo=25.5"
✔ Added mojo=25.5
```
But trying to add 25.4 fails.
```bash
$ pixi add "mojo=25.4"
Error: × failed to solve the conda requirements of 'default' 'linux-64'
╰─▶ Cannot solve the request because of: No candidates were found for mojo 25.4.*.
```
I use pixi 0.46.0.
---
### Author:  [@BradLarson](https://forum.modular.com/u/BradLarson)
#### Post date: [September 13, 2025, 6:15pm UTC](https://forum.modular.com/t/installing-older-modular-mojo-versions-via-pixi/2264/2 "2025-09-13T18:15:35Z")
You’ll need to use `max` for versions older than 25.5. We only first created a dedicated `mojo` Conda package in 25.5, so older versions of Mojo were only available as part of the greater `max` package.
---
### Author:  [@system](https://forum.modular.com/u/system)
#### Post date: [September 20, 2025, 6:16pm UTC](https://forum.modular.com/t/installing-older-modular-mojo-versions-via-pixi/2264/3 "2025-09-20T18:16:23Z")
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