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diff --git a/src/use-geolocation.js b/src/use-geolocation.js
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+// lifted from here @ b72c098:
+// https://github.com/streamich/react-use/blob/master/src/useGeolocation.ts
+import { useState, useEffect } from 'react'
+
+export const useGeolocation = () => {
+  const [state, setState] = useState({
+    loading: true,
+    accuracy: null,
+    altitude: null,
+    altitudeAccuracy: null,
+    heading: null,
+    latitude: null,
+    longitude: null,
+    speed: null,
+    timestamp: Date.now()
+  })
+  let mounted = true
+  let watchId: any
+
+  const onEvent = event => {
+    if (mounted) {
+      setState({
+        loading: false,
+        accuracy: event.coords.accuracy,
+        altitude: event.coords.altitude,
+        altitudeAccuracy: event.coords.altitudeAccuracy,
+        heading: event.coords.heading,
+        latitude: event.coords.latitude,
+        longitude: event.coords.longitude,
+        speed: event.coords.speed,
+        timestamp: event.timestamp
+      })
+    }
+  }
+  const onEventError = error =>
+    mounted && setState(oldState => ({ ...oldState, loading: false, error }))
+
+  useEffect(
+    () => {
+      navigator.geolocation.getCurrentPosition(onEvent, onEventError)
+      watchId = navigator.geolocation.watchPosition(onEvent, onEventError)
+
+      return () => {
+        mounted = false
+        navigator.geolocation.clearWatch(watchId)
+      }
+    },
+    [0]
+  )
+
+  return state
+}