An in-range update of sinon is breaking the build 🚨

[greenkeeper]

Version 5.1.0 of sinon was just published.

Branch	Build failing 🚨
Dependency	sinon
Current Version	5.0.10
Type	devDependency

This version is covered by your current version range and after updating it in your project the build failed.

sinon is a devDependency of this project. It might not break your production code or affect downstream projects, but probably breaks your build or test tools, which may prevent deploying or publishing.

Status Details

• ❌ continuous-integration/travis-ci/push The Travis CI build failed Details
• ✅ continuous-integration/appveyor/branch AppVeyor build succeeded Details

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Commits

The new version differs by 39 commits.

• e68ba0d Update docs/changelog.md and set new release id in docs/_config.yml
• bb0ff41 Add release documentation for v5.1.0
• 8f867f9 5.1.0
• 39466a4 Update History.md and AUTHORS for new release
• 8a4808b finished fixing ie tests
• 53169e3 Merge pull request #1811 from mhmoudgmal/feature/in-matcher
• 09f849c Remove notice
• 01e69a9 cleaning up the fix for #1821
• fabe894 fixed coveralls integration
• 5a886bd Fix #1821: fake tests fails on IE 11
• bed477a Revert PR #1807 to fix #1814
• 878e2e8 clean up travis config
• 5e49793 removed node v4; added node v10
• 81a87d5 Improve tests readability
• 9d30dcf Merge pull request #1809 from fatso83/esm-module

There are 39 commits in total.

See the full diff

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Your Greenkeeper Bot 🌴

[greenkeeper]

After pinning to 5.0.10 your tests are passing again. Downgrade this dependency 📌.