# Setting Your uv Version


| Current default uv version |
|--------|
| *`0.7.12`* |

[uv](https://docs.astral.sh/uv/) is a packaging and dependency manager for Python. Render automatically adds uv to your Python service's runtime if your project's root directory includes a `uv.lock` file.

To specify a uv version, set your service's `UV_VERSION` [environment variable](configure-environment-variables) to any version number that's compatible with your [Python version](python-version).

## History of default uv versions

| Service Creation Date | Default uv Version |
|---|---|
| 2025-06-12 and later | `0.7.12` |