# Upgrade

## Update NuLink Image Using Docker

Make sure you still hold your staking account and worker account. The update in docker is simple: stop the node, pull the latest image and restart the node.

1. Stop the running node in Docker:

   ```shell
   docker kill <container ID>
   ```

   Delete the container:

   ```shell
   docker rm <container ID>
   ```
2. Pull the latest NuLink image.

   ```shell
   docker pull nulink/nulink:latest
   ```
3. Re-launch the worker node.

   ```shell
   docker run --restart on-failure -d \
   --name ursula \
   -p 9151:9151 \
   -v /root/nulink:/code \
   -v /root/nulink:/home/circleci/.local/share/nulink \
   -e NULINK_KEYSTORE_PASSWORD \
   -e NULINK_OPERATOR_ETH_PASSWORD \
   nulink/nulink nulink ursula run --no-block-until-ready
   ```

{% hint style="info" %}
For **NULINK\_KEYSTORE\_PASSWORD** and **NULINK\_OPERATOR\_ETH\_PASSWORD** you can change with your own password or if you already save your password using environment variables you just keep it.
{% endhint %}

Source : [Official Guide](https://docs.nulink.org/products/stakers/nulink_worker/worker_update)