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Configuring Dependabot version updates

You can configure your repository so that Dependabot automatically updates the packages you use.

Who can use this feature

People with write permissions to a repository can enable or disable Dependabot version updates for the repository.

About version updates for dependencies

You enable Dependabot version updates by checking a dependabot.yml configuration file in to your repository's .github directory. Dependabot then raises pull requests to keep the dependencies you configure up-to-date. For each package manager's dependencies that you want to update, you must specify the location of the package manifest files and how often to check for updates to the dependencies listed in those files. For information about enabling security updates, see "Configuring Dependabot security updates."

首次启用版本更新时,您可能有很多过时的依赖项,其中一些可能为许多落后于最新版本的版本。 Dependabot 将在其启用后立即检查过时的依赖项。 根据您配置更新的清单文件的数量,您可能会在添加配置文件后几分钟内看到新的版本更新拉取请求。 Dependabot 也会在配置文件后续更改时运行更新。

Dependabot 也可在更新失败后更改清单文件时创建拉取请求。 这是因为对清单的更改,例如删除导致更新失败的依赖项,可能会导致新触发的更新成功。

为使拉取请求保持可管理和易于审查,Dependabot 最多提出五个拉取请求,以便开始将依赖项更新至最新版本。 如果您在下次预定的更新之前先合并了这些拉取请求,剩余的拉取请求将在下次更新时打开,最多不超过此限。 可以通过设置open-pull-requests-limit配置选项来更改打开的拉取请求的最大数量。 For more information, see "Customizing dependency updates."

By default only direct dependencies that are explicitly defined in a manifest are kept up to date by Dependabot version updates. You can choose to receive updates for indirect dependencies defined in lock files. For more information, see "Configuration options for the dependabot.yml file."

在运行安全性或版本更新时,有些生态系统必须能够解决来自其来源的所有依赖项,以验证版本更新是否成功。 如果清单或锁定文件包含任何私有依赖项,Dependabot 必须能够访问这些依赖项所在的位置。 组织所有者可以授予 Dependabot 访问包含同一个组织内项目依赖项的私有仓库. 有关详细信息,请参阅“管理组织的安全和分析设置”。 你可以在存储库的 dependabot.yml 配置文件中配置对专用注册表的访问。 有关详细信息,请参阅“dependabot.yml 文件的配置选项”。 Additionally, Dependabot doesn't support private GitHub dependencies for all package managers. For more information, see "About Dependabot version updates" and "GitHub language support."

Enabling Dependabot version updates

You enable Dependabot version updates by commiting a dependabot.yml configuration file to your repository. If you enable the feature in your settings page, GitHub creates a basic file which you can edit, otherwise you can create the file using any file editor.

  1. On, navigate to the main page of the repository.

  2. 在存储库名称下,单击 “设置”。 “存储库设置”按钮

  3. In the "Security" section of the sidebar, click Code security and analysis.

  4. Under "Code security and analysis", to the right of "Dependabot version updates", click Enable to open a basic dependabot.yml configuration file in the .github directory of your repository.

  5. Add a version.

  6. Optionally, if you have dependencies in a private registry, add a registries section containing authentication details.

  7. Add an updates section, with an entry for each package manager you want Dependabot to monitor.

  8. For each package manager, use:

    • package-ecosystem to specify the package manager.
    • directory to specify the location of the manifest or other definition files.
    • schedule.interval to specify how often to check for new versions.
  9. 将 dependabot.yml 配置文件签入存储库的 .github 目录中。

For information about all the configuration options, see "Configuration options for the dependabot.yml file."

Example dependabot.yml file

The example dependabot.yml file below configures version updates for two package managers: npm and Docker. When this file is checked in, Dependabot checks the manifest files on the default branch for outdated dependencies. If it finds outdated dependencies, it will raise pull requests against the default branch to update the dependencies.

# Basic dependabot.yml file with
# minimum configuration for two package managers

version: 2
  # Enable version updates for npm
  - package-ecosystem: "npm"
    # Look for `package.json` and `lock` files in the `root` directory
    directory: "/"
    # Check the npm registry for updates every day (weekdays)
      interval: "daily"

  # Enable version updates for Docker
  - package-ecosystem: "docker"
    # Look for a `Dockerfile` in the `root` directory
    directory: "/"
    # Check for updates once a week
      interval: "weekly"

In the example above, if the Docker dependencies were very outdated, you might want to start with a daily schedule until the dependencies are up-to-date, and then drop back to a weekly schedule.

Enabling version updates on forks

If you want to enable version updates on forks, there's an extra step. Version updates are not automatically enabled on forks when a dependabot.yml configuration file is present. This ensures that fork owners don't unintentionally enable version updates when they pull changes including a dependabot.yml configuration file from the original repository.

On a fork, you also need to explicitly enable Dependabot.

  1. On, navigate to the main page of the repository.

  2. 在存储库名称下,单击 “设置”。 “存储库设置”按钮

  3. In the "Security" section of the sidebar, click Code security and analysis.

  4. Under "Code security and analysis", to the right of "Dependabot version updates", click Enable to allow Dependabot to initiate version updates. Screenshot of Dependabot version updates setting for a forked repository

Checking the status of version updates

After you enable version updates, the Dependabot tab in the dependency graph for the repository is populated. This tab shows which package managers Dependabot is configured to monitor and when Dependabot last checked for new versions.

Repository Insights tab, Dependency graph, Dependabot tab

For information, see "Listing dependencies configured for version updates."

Disabling Dependabot version updates

You can disable version updates entirely by deleting the dependabot.yml file from your repository. More usually, you want to disable updates temporarily for one or more dependencies, or package managers.

  • Package managers: disable by setting open-pull-requests-limit: 0 or by commenting out the relevant package-ecosystem in the configuration file.
  • Specific dependencies: disable by adding ignore attributes for packages or applications that you want to exclude from updates.

When you disable dependencies, you can use wild cards to match a set of related libraries. You can also specify which versions to exclude. This is particularly useful if you need to block updates to a library, pending work to support a breaking change to its API, but want to get any security fixes to the version you use.

Example disabling version updates for some dependencies

The example dependabot.yml file below includes examples of the different ways to disable updates to some dependencies, while allowing other updates to continue.

# dependabot.yml file with updates
# disabled for Docker and limited for npm

version: 2
  # Configuration for Dockerfile
  - package-ecosystem: "docker"
    directory: "/"
      interval: "weekly"
      # Disable all pull requests for Docker dependencies
    open-pull-requests-limit: 0

  # Configuration for npm
  - package-ecosystem: "npm"
    directory: "/"
      interval: "weekly"
      # Ignore updates to packages that start with 'aws'
      # Wildcards match zero or more arbitrary characters
      - dependency-name: "aws*"
      # Ignore some updates to the 'express' package
      - dependency-name: "express"
        # Ignore only new versions for 4.x and 5.x
        versions: ["4.x", "5.x"]
      # For all packages, ignore all patch updates
      - dependency-name: "*"
        update-types: ["version-update:semver-patch"]

For more information about checking for existing ignore preferences, see "Configuration options for the dependabot.yml file."