---
slug: /en/operations/update
sidebar_position: 47
sidebar_label: ClickHouse Upgrade
---

# ClickHouse Upgrade

If ClickHouse was installed from `deb` packages, execute the following commands on the server:

``` bash
$ sudo apt-get update
$ sudo apt-get install clickhouse-client clickhouse-server
$ sudo service clickhouse-server restart
```

If you installed ClickHouse using something other than the recommended `deb` packages, use the appropriate update method.

:::note
You can update multiple servers at once as soon as there is no moment when all replicas of one shard are offline.
:::

The upgrade of older version of ClickHouse to specific version:

As an example:

`xx.yy.a.b` is a current stable version. The latest stable version could be found [here](https://github.com/ClickHouse/ClickHouse/releases)

```bash
$ sudo apt-get update
$ sudo apt-get install clickhouse-server=xx.yy.a.b clickhouse-client=xx.yy.a.b clickhouse-common-static=xx.yy.a.b
$ sudo service clickhouse-server restart
```