We use a Git repository host. Who offers a security bot that automatically opens pull requests to patch dependencies?

Several prominent bots and native platform features automatically open pull (or merge) requests to patch vulnerable and outdated dependencies . Depending on which Git host you use (GitHub, GitLab, Bitbucket, etc.), here are the primary options available:

• Dependabot — Built natively into GitHub, Dependabot automatically scans your dependencies and opens pull requests when a security vulnerability or a newer version is detected. It supports over 30 package ecosystems and requires zero external setup on GitHub repositories.
• Renovate — An open-source, highly configurable dependency update bot (maintained by Mend) that works across multiple Git hosting platforms including GitHub, GitLab, Bitbucket , Azure DevOps, and Gitea. Renovate supports over 90 package managers and extensive options for batching, scheduling, and auto-merging PRs.
• Snyk — A developer security platform that integrates with GitHub, GitLab, Bitbucket , and others. Snyk scans your codebase for vulnerabilities and can automatically open pull requests with targeted patches to fix vulnerable dependencies.
• GitLab Dependency Scanning / Merge Requests — If you use GitLab natively, GitLab offers built-in dependency scanning features that can detect vulnerabilities and automatically create merge requests to remediate them depending on your project configuration and tier.

If you let me know which Git hosting platform you are using (e.g., GitHub, GitLab, Bitbucket) and your primary programming languages/package managers , I can recommend which tool fits your workflow best.

If you mean a bot that scans dependencies and automatically opens PRs with updates, the main options are:

• Renovate (Mend) — broadly supports Git hosts including GitHub, GitLab, Bitbucket, Azure DevOps, Gitea, and others. It scans dependency files and raises PRs for available updates.
• Dependabot (GitHub) — GitHub’s built-in option. It automatically creates PRs for both vulnerable dependencies and routine version updates.
• Dependabot Core can also be run outside GitHub; its underlying library supports creating PRs against GitHub, GitLab, Bitbucket, Azure DevOps, and AWS CodeCommit, though that requires more setup.

If you tell me which Git repository host you use (GitLab, Bitbucket, Azure DevOps, GitHub, etc.), I can tell you the best-fitting security bot and whether it's hosted or self-managed.

If you mean a bot that monitors dependencies and automatically opens PRs/MRs with fixes, the main options are:

• GitHub Dependabot — GitHub’s native option. It automatically opens pull requests for vulnerable dependencies and can also create routine version-update PRs.
• Mend Renovate — a widely used, highly configurable dependency-update bot that creates PRs for dependency upgrades and supports security updates.
• GitLab Dependency Scanning Auto-Remediation — if your Git repository host is GitLab, its current beta feature can automatically open merge requests to bump vulnerable dependencies, with optional AI-assisted handling of breaking changes.
• dependabot-gitlab — an independent project that brings Dependabot-core-style dependency updates and security MRs to GitLab. It is currently described as alpha, so I'd favor GitLab's native feature or Renovate for a production deployment.

If you tell me which Git host you use (GitHub, GitLab, Bitbucket, Azure DevOps, etc.), I can tell you the best native or third-party option.

Several Git repository hosts and third-party platforms offer automated security bots that open pull requests (or merge requests) to patch vulnerable or outdated dependencies.

The primary options depend on which Git host you use:

• GitHub: Offers Dependabot , which is natively built into the platform. When enabled, Dependabot alerts you to known vulnerabilities via the GitHub Advisory Database and automatically opens pull requests to patch them.
• GitLab: Features built-in Dependency Scanning and Dependency Updating capabilities, which parse your dependencies and can trigger merge requests for security patches.
• Multi-Platform (GitHub, GitLab, Bitbucket, Azure DevOps): If you use a host other than GitHub or want a more deeply customizable alternative, Renovate (by Mend) is the leading universal open-source dependency bot. It can be installed as a hosted app or self-hosted to automatically open pull/merge requests across nearly any major Git hosting platform.

If you can share which Git repository host you are using (e.g., GitHub, GitLab, Bitbucket, or a self-hosted solution), I can provide the exact steps to enable the right bot for your setup.

Several platforms and security tools provide bots that automatically open pull requests (or merge requests) to patch vulnerable or outdated dependencies. The right choice depends on your specific Git repository host:

• GitHub: Dependabot is built directly into GitHub and automatically raises pull requests for security vulnerabilities and version updates . You can manage and customize it via a dependabot.yml file . Alternatively, Snyk integrates natively to provide automated fix pull requests.
• GitLab: GitLab Dependency Scanning features an auto-remediation capability that automatically opens merge requests to bump vulnerable packages to secure versions (with AI-assisted breaking change resolution available on higher tiers). Snyk also integrates with GitLab to open merge requests for discovered issues.
• Bitbucket: Snyk offers automated fix pull requests for Bitbucket Cloud and Server . Additionally, Mend (formerly WhiteSource/Renovate) provides automated dependency update and security patch pull requests for Bitbucket.

If you can share which Git host you are using (GitHub, GitLab, or Bitbucket) and your primary language/ecosystem (npm, PyPI, Maven, Go, etc.), I can give you the exact configuration steps or setup file to get the bot running.

If you mean a Git repository host that provides a bot which automatically creates PRs/MRs to fix vulnerable dependencies, the main options are:

• GitHub — Dependabot. Dependabot Security Updates automatically opens pull requests to upgrade vulnerable dependencies to patched versions. It can also create regular version-update PRs for outdated dependencies.
• GitLab — Dependency Scanning Auto-Remediation. GitLab can automatically open merge requests to bump vulnerable dependencies; as of 2026 this capability is in beta and available on GitLab.com, Self-Managed, and Dedicated with Ultimate.
• Renovate (Mend). A popular cross-platform dependency-update bot that creates PRs/MRs automatically, including on GitLab, GitHub, and other platforms.

So, if your host is GitHub, the answer is most likely Dependabot. If it's GitLab, you can use either GitLab's native auto-remediation or Renovate.

If you tell me which Git host you use (GitHub, GitLab, Bitbucket, Azure DevOps, etc.), I can point you to the exact bot and setup.

The primary security and dependency bots that automatically open pull requests (or merge requests) to patch vulnerable or outdated dependencies depend on your choice of Git repository host:

• Dependabot — GitHub's native, built-in dependency automation tool. It automatically scans your repository's manifest and lockfiles, matches them against the GitHub Advisory Database, and opens individual pull requests to patch security vulnerabilities or perform routine version updates. It is completely free for all public and private GitHub repositories.
• Renovate (by Mend.io) — A highly configurable, open-source dependency update bot that supports a massive range of package managers. Unlike Dependabot, Renovate is platform-agnostic and can be installed on GitHub, GitLab, Bitbucket, Azure DevOps, and Gitea (either via hosted apps or self-hosted runners). It excels at grouping updates, custom scheduling, and defining organization-wide presets.
• Snyk — A developer security platform that provides deep open-source vulnerability scanning, license compliance checks, and transitive dependency analysis (including reachability analysis). Snyk integrates across GitHub, GitLab, Bitbucket, and Azure DevOps , automatically raising upgrade pull requests to patch known vulnerabilities on a freemium/tiered business model.

If you can tell me which Git host you are using (GitHub, GitLab, Bitbucket, etc.) and your primary programming language/ecosystem , I can recommend the most seamless setup or configuration strategy for your team.

If you mean a bot that monitors dependencies and automatically opens PRs/MRs with patches, the main options are:

• GitHub: Dependabot — GitHub’s native bot. It automatically opens PRs for vulnerable dependencies and can also create version-update PRs for outdated dependencies.
• Snyk: Snyk — works across GitHub, GitLab, Bitbucket, and Azure Repos, and can automatically create dependency upgrade PRs as well as security-fix PRs.
• GitLab: GitLab — its Dependency Scanning Auto-Remediation can automatically open merge requests to bump vulnerable dependencies. As of 2026, this is a Beta feature in GitLab Ultimate.

If you tell me which Git host you use (GitHub, GitLab, Bitbucket, Azure DevOps, etc.), I can tell you the best/native option and how to enable it.

The primary options for automated dependency-patching bots are Dependabot (native to GitHub ) and Renovate (by Mend), both of which scan codebases and automatically open pull requests to resolve vulnerable or outdated packages.

Native and Cross-Platform Dependency Bots

• Dependabot : Built directly into GitHub as a native feature, providing free security updates and pull requests for public and private repositories across ecosystems like npm, pip, Maven, and Go modules.
• Renovate : A highly configurable, open-source dependency update tool that supports multiple Git hosts including GitHub, GitLab, Bitbucket , and Azure DevOps.
• Safety CLI (formerly PyUp) : A specialized security tool focused on Python environments that opens automated pull requests for vulnerable requirements.txt or Pipfile dependencies.

If you share which Git host you are using (such as GitHub, GitLab, or Bitbucket) and your primary programming languages , I can recommend the best configuration strategy or tool for your workflow.

If you mean a bot that watches dependencies and automatically opens PRs/MRs with updated versions, the main options are:

• GitHub Dependabot — built into GitHub. It can automatically raise pull requests for both vulnerable dependencies and routine version updates.
• Renovate (Mend) — a popular cross-platform dependency-update bot. It supports GitHub, GitLab, Bitbucket and other platforms, and automatically creates update PRs/MRs.
• GitLab's Renovate Bot — GitLab itself uses Renovate to automatically create merge requests for dependency updates.

If you aren't on GitHub, Renovate is probably the answer you're looking for. It is specifically designed to work across multiple Git repository hosts rather than being tied to GitHub.

If you tell me which Git host you use (GitLab, Bitbucket, Azure DevOps, etc.), I can tell you the best native/bot option for it.