# How to Upgrade RunCell

> Upgrade runcell to the latest version and restart JupyterLab to apply changes

Canonical HTML: https://www.runcell.dev/docs/faq/how-to-upgrade-runcell

## Upgrade runcell

To upgrade runcell to the latest version, run:

```bash
pip install runcell --upgrade
```

If you're using **uv**:

```bash
uv pip install runcell --upgrade
```

Make sure you run the command in the **same environment** where JupyterLab is installed.

***

## Restart JupyterLab after upgrading

runcell includes both frontend and backend components. After upgrading, you **must fully restart JupyterLab** (a browser refresh is not enough).

1. Stop the running JupyterLab process using one of these methods:
   * Run `jupyter lab stop` in a new terminal window, or
   * Press `Ctrl + C` in the terminal where JupyterLab is running
2. Start it again:

```bash
jupyter lab
```

Alternatively, you can select **Restart Server** from the JupyterLab menu if available.

***

## Verify the upgrade

```bash
pip show runcell
```

Check that the version matches the latest release.