An in-range update of eslint-plugin-flowtype is breaking the build 🚨

## The devDependency [eslint-plugin-flowtype](https://github.com/gajus/eslint-plugin-flowtype) was updated from `3.9.0` to `3.9.1`.

🚨 [View failing branch](https://github.com/aikar/objectsm/compare/master...aikar:greenkeeper%2Feslint-plugin-flowtype-3.9.1).

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

eslint-plugin-flowtype 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 could not complete due to an error ([Details](https://travis-ci.org/aikar/objectsm/builds/536131263?utm_source=github_status&utm_medium=notification)).

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Release Notes for v3.9.1

3.9.1 (2019-05-23)

Bug Fixes

• requireReadOnlyReactProps (#406) (712d840)

Commits

The new version differs by 1 commits.

• 712d840 fix: requireReadOnlyReactProps (#406)

See the full diff

FAQ and help

There is a collection of [frequently asked questions](https://greenkeeper.io/faq.html). If those don’t help, you can always [ask the humans behind Greenkeeper](https://github.com/greenkeeperio/greenkeeper/issues/new).

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Your [Greenkeeper](https://greenkeeper.io) Bot :palm_tree: