--- description: Sets the number of containers to run for a service. keywords: fig, composition, compose, docker, orchestration, cli, scale title: docker-compose scale notoc: true --- > **This command is deprecated.** Use the [up](up.md) command with the `--scale` flag instead. Beware that using `up` with the `--scale` flag has some [subtle differences](https://github.com/docker/compose/issues/5251) with the `scale` command, as it incorporates the behaviour of the `up` command. {: .warning } ```none Usage: scale [options] [SERVICE=NUM...] Options: -t, --timeout TIMEOUT Specify a shutdown timeout in seconds. (default: 10) ``` Sets the number of containers to run for a service. Numbers are specified as arguments in the form `service=num`. For example: docker-compose scale web=2 worker=3 >**Tip**: Alternatively, in [Compose file version 3.x](../compose-file/index.md), you can specify [replicas](../compose-file/index.md#replicas) under the [deploy](../compose-file/index.md#deploy) key as part of a service configuration for [Swarm mode](/engine/swarm/). The `deploy` key and its sub-options (including `replicas`) only works with the `docker stack deploy` command, not `docker-compose up` or `docker-compose run`.