diff --git a/.all-contributorsrc b/.all-contributorsrc
index 993a0816b..648bbbce2 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -481,7 +481,8 @@
       "avatar_url": "https://avatars3.githubusercontent.com/u/8997319?v=4",
       "profile": "https://alexandernanberg.com",
       "contributions": [
-        "doc"
+        "doc",
+        "code"
       ]
     },
     {
diff --git a/README.md b/README.md
index 5375ea01a..6304b7fbb 100644
--- a/README.md
+++ b/README.md
@@ -1014,7 +1014,7 @@ Thanks goes to these people ([emoji key][emojis]):
 | [<img src="https://avatars0.githubusercontent.com/u/1402095?v=4" width="100px;"/><br /><sub><b>Matt Parrish</b></sub>](https://github.com/pbomb)<br />[🔧](#tool-pbomb "Tools") [👀](#review-pbomb "Reviewed Pull Requests") | [<img src="https://avatars1.githubusercontent.com/u/11661846?v=4" width="100px;"/><br /><sub><b>thom</b></sub>](http://thom.kr)<br />[💻](https://github.com/paypal/downshift/commits?author=thomhos "Code") | [<img src="https://avatars2.githubusercontent.com/u/1088312?v=4" width="100px;"/><br /><sub><b>Vu Tran</b></sub>](http://twitter.com/tranvu)<br />[💻](https://github.com/paypal/downshift/commits?author=vutran "Code") | [<img src="https://avatars1.githubusercontent.com/u/74193?v=4" width="100px;"/><br /><sub><b>Codie Mullins</b></sub>](https://github.com/codiemullins)<br />[💻](https://github.com/paypal/downshift/commits?author=codiemullins "Code") [💡](#example-codiemullins "Examples") | [<img src="https://avatars3.githubusercontent.com/u/12202757?v=4" width="100px;"/><br /><sub><b>Mohammad Rajabifard</b></sub>](https://morajabi.me)<br />[📖](https://github.com/paypal/downshift/commits?author=morajabi "Documentation") [🤔](#ideas-morajabi "Ideas, Planning, & Feedback") | [<img src="https://avatars3.githubusercontent.com/u/9488719?v=4" width="100px;"/><br /><sub><b>Frank Tan</b></sub>](https://github.com/tansongyang)<br />[💻](https://github.com/paypal/downshift/commits?author=tansongyang "Code") | [<img src="https://avatars3.githubusercontent.com/u/5093058?v=4" width="100px;"/><br /><sub><b>Kier Borromeo</b></sub>](https://kierb.com)<br />[💡](#example-srph "Examples") |
 | [<img src="https://avatars1.githubusercontent.com/u/8969456?v=4" width="100px;"/><br /><sub><b>Paul Veevers</b></sub>](https://github.com/paul-veevers)<br />[💻](https://github.com/paypal/downshift/commits?author=paul-veevers "Code") | [<img src="https://avatars2.githubusercontent.com/u/13622298?v=4" width="100px;"/><br /><sub><b>Ron Cruz</b></sub>](https://github.com/Ronolibert)<br />[📖](https://github.com/paypal/downshift/commits?author=Ronolibert "Documentation") | [<img src="https://avatars1.githubusercontent.com/u/13605633?v=4" width="100px;"/><br /><sub><b>Rick McGavin</b></sub>](http://rickmcgavin.github.io)<br />[📖](https://github.com/paypal/downshift/commits?author=rickMcGavin "Documentation") | [<img src="https://avatars0.githubusercontent.com/u/869669?v=4" width="100px;"/><br /><sub><b>Jelle Versele</b></sub>](http://twitter.com/vejersele)<br />[💡](#example-vejersele "Examples") | [<img src="https://avatars1.githubusercontent.com/u/202773?v=4" width="100px;"/><br /><sub><b>Brent Ertz</b></sub>](https://github.com/brentertz)<br />[🤔](#ideas-brentertz "Ideas, Planning, & Feedback") | [<img src="https://avatars3.githubusercontent.com/u/8015514?v=4" width="100px;"/><br /><sub><b>Justice Mba </b></sub>](https://github.com/Dajust)<br />[💻](https://github.com/paypal/downshift/commits?author=Dajust "Code") [📖](https://github.com/paypal/downshift/commits?author=Dajust "Documentation") [🤔](#ideas-Dajust "Ideas, Planning, & Feedback") | [<img src="https://avatars2.githubusercontent.com/u/3925281?v=4" width="100px;"/><br /><sub><b>Mark Ellis</b></sub>](http://mfellis.com)<br />[🤔](#ideas-ellismarkf "Ideas, Planning, & Feedback") |
 | [<img src="https://avatars1.githubusercontent.com/u/3241922?v=4" width="100px;"/><br /><sub><b>us͡an̸df͘rien͜ds͠</b></sub>](http://ronak.io/)<br />[🐛](https://github.com/paypal/downshift/issues?q=author%3Ausandfriends "Bug reports") [💻](https://github.com/paypal/downshift/commits?author=usandfriends "Code") [⚠️](https://github.com/paypal/downshift/commits?author=usandfriends "Tests") | [<img src="https://avatars0.githubusercontent.com/u/474248?v=4" width="100px;"/><br /><sub><b>Robin Drexler</b></sub>](https://www.robin-drexler.com/)<br />[🐛](https://github.com/paypal/downshift/issues?q=author%3Arobin-drexler "Bug reports") [💻](https://github.com/paypal/downshift/commits?author=robin-drexler "Code") | [<img src="https://avatars0.githubusercontent.com/u/7406639?v=4" width="100px;"/><br /><sub><b>Arturo Romero</b></sub>](http://arturoromero.info/)<br />[💡](#example-arturoromeroslc "Examples") | [<img src="https://avatars1.githubusercontent.com/u/275483?v=4" width="100px;"/><br /><sub><b>yp</b></sub>](http://algolab.eu/pirola)<br />[🐛](https://github.com/paypal/downshift/issues?q=author%3Ayp "Bug reports") [💻](https://github.com/paypal/downshift/commits?author=yp "Code") [⚠️](https://github.com/paypal/downshift/commits?author=yp "Tests") | [<img src="https://avatars0.githubusercontent.com/u/3998604?v=4" width="100px;"/><br /><sub><b>Dave Garwacke</b></sub>](http://www.warbyparker.com)<br />[📖](https://github.com/paypal/downshift/commits?author=ifyoumakeit "Documentation") | [<img src="https://avatars3.githubusercontent.com/u/11758660?v=4" width="100px;"/><br /><sub><b>Ivan Pazhitnykh</b></sub>](http://linkedin.com/in/drapegnik)<br />[💻](https://github.com/paypal/downshift/commits?author=Drapegnik "Code") [⚠️](https://github.com/paypal/downshift/commits?author=Drapegnik "Tests") | [<img src="https://avatars0.githubusercontent.com/u/61776?v=4" width="100px;"/><br /><sub><b>Luis Merino</b></sub>](https://github.com/Rendez)<br />[📖](https://github.com/paypal/downshift/commits?author=Rendez "Documentation") |
-| [<img src="https://avatars0.githubusercontent.com/u/8746094?v=4" width="100px;"/><br /><sub><b>Andrew Hansen</b></sub>](http://twitter.com/arahansen)<br />[💻](https://github.com/paypal/downshift/commits?author=arahansen "Code") [⚠️](https://github.com/paypal/downshift/commits?author=arahansen "Tests") [🤔](#ideas-arahansen "Ideas, Planning, & Feedback") | [<img src="https://avatars3.githubusercontent.com/u/20307225?v=4" width="100px;"/><br /><sub><b>John Whiles</b></sub>](http://www.johnwhiles.com)<br />[💻](https://github.com/paypal/downshift/commits?author=Jwhiles "Code") | [<img src="https://avatars1.githubusercontent.com/u/1288694?v=4" width="100px;"/><br /><sub><b>Justin Hall</b></sub>](https://github.com/wKovacs64)<br />[🚇](#infra-wKovacs64 "Infrastructure (Hosting, Build-Tools, etc)") | [<img src="https://avatars2.githubusercontent.com/u/7641760?v=4" width="100px;"/><br /><sub><b>Pete Nykänen</b></sub>](https://twitter.com/pete_tnt)<br />[👀](#review-petetnt "Reviewed Pull Requests") | [<img src="https://avatars2.githubusercontent.com/u/4060187?v=4" width="100px;"/><br /><sub><b>Jared Palmer</b></sub>](http://jaredpalmer.com)<br />[💻](https://github.com/paypal/downshift/commits?author=jaredpalmer "Code") | [<img src="https://avatars3.githubusercontent.com/u/11477718?v=4" width="100px;"/><br /><sub><b>Philip Young</b></sub>](http://www.philipyoungg.com)<br />[💻](https://github.com/paypal/downshift/commits?author=philipyoungg "Code") [⚠️](https://github.com/paypal/downshift/commits?author=philipyoungg "Tests") [🤔](#ideas-philipyoungg "Ideas, Planning, & Feedback") | [<img src="https://avatars3.githubusercontent.com/u/8997319?v=4" width="100px;"/><br /><sub><b>Alexander Nanberg</b></sub>](https://alexandernanberg.com)<br />[📖](https://github.com/paypal/downshift/commits?author=alexandernanberg "Documentation") |
+| [<img src="https://avatars0.githubusercontent.com/u/8746094?v=4" width="100px;"/><br /><sub><b>Andrew Hansen</b></sub>](http://twitter.com/arahansen)<br />[💻](https://github.com/paypal/downshift/commits?author=arahansen "Code") [⚠️](https://github.com/paypal/downshift/commits?author=arahansen "Tests") [🤔](#ideas-arahansen "Ideas, Planning, & Feedback") | [<img src="https://avatars3.githubusercontent.com/u/20307225?v=4" width="100px;"/><br /><sub><b>John Whiles</b></sub>](http://www.johnwhiles.com)<br />[💻](https://github.com/paypal/downshift/commits?author=Jwhiles "Code") | [<img src="https://avatars1.githubusercontent.com/u/1288694?v=4" width="100px;"/><br /><sub><b>Justin Hall</b></sub>](https://github.com/wKovacs64)<br />[🚇](#infra-wKovacs64 "Infrastructure (Hosting, Build-Tools, etc)") | [<img src="https://avatars2.githubusercontent.com/u/7641760?v=4" width="100px;"/><br /><sub><b>Pete Nykänen</b></sub>](https://twitter.com/pete_tnt)<br />[👀](#review-petetnt "Reviewed Pull Requests") | [<img src="https://avatars2.githubusercontent.com/u/4060187?v=4" width="100px;"/><br /><sub><b>Jared Palmer</b></sub>](http://jaredpalmer.com)<br />[💻](https://github.com/paypal/downshift/commits?author=jaredpalmer "Code") | [<img src="https://avatars3.githubusercontent.com/u/11477718?v=4" width="100px;"/><br /><sub><b>Philip Young</b></sub>](http://www.philipyoungg.com)<br />[💻](https://github.com/paypal/downshift/commits?author=philipyoungg "Code") [⚠️](https://github.com/paypal/downshift/commits?author=philipyoungg "Tests") [🤔](#ideas-philipyoungg "Ideas, Planning, & Feedback") | [<img src="https://avatars3.githubusercontent.com/u/8997319?v=4" width="100px;"/><br /><sub><b>Alexander Nanberg</b></sub>](https://alexandernanberg.com)<br />[📖](https://github.com/paypal/downshift/commits?author=alexandernanberg "Documentation") [💻](https://github.com/paypal/downshift/commits?author=alexandernanberg "Code") |
 | [<img src="https://avatars2.githubusercontent.com/u/1556430?v=4" width="100px;"/><br /><sub><b>Pete Redmond</b></sub>](https://httpete.com)<br />[🐛](https://github.com/paypal/downshift/issues?q=author%3Ahttpete-ire "Bug reports") | [<img src="https://avatars2.githubusercontent.com/u/1706342?v=4" width="100px;"/><br /><sub><b>Nick Lavin</b></sub>](https://github.com/Zashy)<br />[🐛](https://github.com/paypal/downshift/issues?q=author%3AZashy "Bug reports") [💻](https://github.com/paypal/downshift/commits?author=Zashy "Code") [⚠️](https://github.com/paypal/downshift/commits?author=Zashy "Tests") | [<img src="https://avatars2.githubusercontent.com/u/17031?v=4" width="100px;"/><br /><sub><b>James Long</b></sub>](http://jlongster.com)<br />[🐛](https://github.com/paypal/downshift/issues?q=author%3Ajlongster "Bug reports") [💻](https://github.com/paypal/downshift/commits?author=jlongster "Code") | [<img src="https://avatars0.githubusercontent.com/u/1505907?v=4" width="100px;"/><br /><sub><b>Michael Ball</b></sub>](http://michaelball.co)<br />[🐛](https://github.com/paypal/downshift/issues?q=author%3Acycomachead "Bug reports") [💻](https://github.com/paypal/downshift/commits?author=cycomachead "Code") [⚠️](https://github.com/paypal/downshift/commits?author=cycomachead "Tests") | [<img src="https://avatars0.githubusercontent.com/u/8990614?v=4" width="100px;"/><br /><sub><b>CAVALEIRO Julien</b></sub>](https://github.com/Julienng)<br />[💡](#example-Julienng "Examples") | [<img src="https://avatars1.githubusercontent.com/u/3421067?v=4" width="100px;"/><br /><sub><b>Kim Grönqvist</b></sub>](http://www.kimgronqvist.se)<br />[💻](https://github.com/paypal/downshift/commits?author=kimgronqvist "Code") [⚠️](https://github.com/paypal/downshift/commits?author=kimgronqvist "Tests") | [<img src="https://avatars2.githubusercontent.com/u/3675602?v=4" width="100px;"/><br /><sub><b>Sijie</b></sub>](http://sijietian.com)<br />[🐛](https://github.com/paypal/downshift/issues?q=author%3Atiansijie "Bug reports") [💻](https://github.com/paypal/downshift/commits?author=tiansijie "Code") |
 | [<img src="https://avatars0.githubusercontent.com/u/410792?v=4" width="100px;"/><br /><sub><b>Dony Sukardi</b></sub>](http://dsds.io)<br />[💡](#example-donysukardi "Examples") [💬](#question-donysukardi "Answering Questions") [💻](https://github.com/paypal/downshift/commits?author=donysukardi "Code") [⚠️](https://github.com/paypal/downshift/commits?author=donysukardi "Tests") | [<img src="https://avatars1.githubusercontent.com/u/2755722?v=4" width="100px;"/><br /><sub><b>Dillon Mulroy</b></sub>](https://dillonmulroy.com)<br />[📖](https://github.com/paypal/downshift/commits?author=dmmulroy "Documentation") | [<img src="https://avatars3.githubusercontent.com/u/12440573?v=4" width="100px;"/><br /><sub><b>Curtis Tate Wilkinson</b></sub>](https://twitter.com/curtytate)<br />[💻](https://github.com/paypal/downshift/commits?author=curtiswilkinson "Code") | [<img src="https://avatars3.githubusercontent.com/u/383212?v=4" width="100px;"/><br /><sub><b>Brice BERNARD</b></sub>](https://github.com/brikou)<br />[🐛](https://github.com/paypal/downshift/issues?q=author%3Abrikou "Bug reports") [💻](https://github.com/paypal/downshift/commits?author=brikou "Code") | [<img src="https://avatars3.githubusercontent.com/u/14304503?v=4" width="100px;"/><br /><sub><b>Tony Xu</b></sub>](https://github.com/xutopia)<br />[💻](https://github.com/paypal/downshift/commits?author=xutopia "Code") | [<img src="https://avatars1.githubusercontent.com/u/14035529?v=4" width="100px;"/><br /><sub><b>Anthony Ng</b></sub>](http://anthonyng.me)<br />[📖](https://github.com/paypal/downshift/commits?author=newyork-anthonyng "Documentation") | [<img src="https://avatars2.githubusercontent.com/u/11996139?v=4" width="100px;"/><br /><sub><b>S S</b></sub>](https://github.com/notruth)<br />[💬](#question-notruth "Answering Questions") [💻](https://github.com/paypal/downshift/commits?author=notruth "Code") [📖](https://github.com/paypal/downshift/commits?author=notruth "Documentation") [🤔](#ideas-notruth "Ideas, Planning, & Feedback") [⚠️](https://github.com/paypal/downshift/commits?author=notruth "Tests") |
 | [<img src="https://avatars0.githubusercontent.com/u/29493001?v=4" width="100px;"/><br /><sub><b>Austin Tackaberry</b></sub>](http://austintackaberry.co)<br />[💬](#question-austintackaberry "Answering Questions") [💻](https://github.com/paypal/downshift/commits?author=austintackaberry "Code") [📖](https://github.com/paypal/downshift/commits?author=austintackaberry "Documentation") [🐛](https://github.com/paypal/downshift/issues?q=author%3Aaustintackaberry "Bug reports") [💡](#example-austintackaberry "Examples") [🤔](#ideas-austintackaberry "Ideas, Planning, & Feedback") [👀](#review-austintackaberry "Reviewed Pull Requests") [⚠️](https://github.com/paypal/downshift/commits?author=austintackaberry "Tests") | [<img src="https://avatars3.githubusercontent.com/u/4168055?v=4" width="100px;"/><br /><sub><b>Jean Duthon</b></sub>](https://github.com/jduthon)<br />[🐛](https://github.com/paypal/downshift/issues?q=author%3Ajduthon "Bug reports") [💻](https://github.com/paypal/downshift/commits?author=jduthon "Code") | [<img src="https://avatars3.githubusercontent.com/u/3889580?v=4" width="100px;"/><br /><sub><b>Anton Telesh</b></sub>](http://antontelesh.github.io)<br />[🐛](https://github.com/paypal/downshift/issues?q=author%3AAntontelesh "Bug reports") [💻](https://github.com/paypal/downshift/commits?author=Antontelesh "Code") | [<img src="https://avatars3.githubusercontent.com/u/1060669?v=4" width="100px;"/><br /><sub><b>Eric Edem</b></sub>](https://github.com/ericedem)<br />[💻](https://github.com/paypal/downshift/commits?author=ericedem "Code") [📖](https://github.com/paypal/downshift/commits?author=ericedem "Documentation") [🤔](#ideas-ericedem "Ideas, Planning, & Feedback") [⚠️](https://github.com/paypal/downshift/commits?author=ericedem "Tests") | [<img src="https://avatars3.githubusercontent.com/u/3409645?v=4" width="100px;"/><br /><sub><b>Austin Wood</b></sub>](https://github.com/indiesquidge)<br />[💬](#question-indiesquidge "Answering Questions") [📖](https://github.com/paypal/downshift/commits?author=indiesquidge "Documentation") [👀](#review-indiesquidge "Reviewed Pull Requests") | [<img src="https://avatars3.githubusercontent.com/u/14275790?v=4" width="100px;"/><br /><sub><b>Mark Murray</b></sub>](https://github.com/mmmurray)<br />[🚇](#infra-mmmurray "Infrastructure (Hosting, Build-Tools, etc)") | [<img src="https://avatars0.githubusercontent.com/u/1862172?v=4" width="100px;"/><br /><sub><b>Gianmarco</b></sub>](https://github.com/gsimone)<br />[🐛](https://github.com/paypal/downshift/issues?q=author%3Agsimone "Bug reports") [💻](https://github.com/paypal/downshift/commits?author=gsimone "Code") |
diff --git a/src/__tests__/downshift.lifecycle.js b/src/__tests__/downshift.lifecycle.js
index d9d1ab740..0095e3855 100644
--- a/src/__tests__/downshift.lifecycle.js
+++ b/src/__tests__/downshift.lifecycle.js
@@ -7,6 +7,30 @@ import * as utils from '../utils'
 jest.useFakeTimers()
 jest.mock('../set-a11y-status')
 
+test('do not set state after unmount', () => {
+  const handleStateChange = jest.fn()
+  const childrenSpy = jest.fn(({getInputProps}) => (
+    <div>
+      <input {...getInputProps({'data-testid': 'input'})} />
+      <button {...getInputProps({'data-testid': 'button'})}>Toggle</button>
+    </div>
+  ))
+  const MyComponent = () => (
+    <Downshift onStateChange={handleStateChange}>{childrenSpy}</Downshift>
+  )
+  const {queryByTestId, container, unmount} = render(<MyComponent />)
+  const button = queryByTestId('button')
+  document.body.appendChild(container)
+
+  // blur toggle button
+  Simulate.blur(button)
+  handleStateChange.mockClear()
+
+  // unmount
+  unmount()
+  expect(handleStateChange).toHaveBeenCalledTimes(0)
+})
+
 test('handles mouse events properly to reset state', () => {
   const handleStateChange = jest.fn()
   const childrenSpy = jest.fn(({getInputProps}) => (
diff --git a/src/downshift.js b/src/downshift.js
index 0f3bdda24..f5d3ed9c8 100644
--- a/src/downshift.js
+++ b/src/downshift.js
@@ -302,6 +302,9 @@ class Downshift extends Component {
   // In addition, we'll call this.props.onChange if the
   // selectedItem is changed.
   internalSetState = (stateToSet, cb) => {
+    // Prevent setState on unmounted components.
+    if (!this._isMounted) return undefined
+
     let isItemSelected, onChangeArg
 
     const onStateChangeArg = {}