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---title: useUpdateAtom---
Ref: https://github.com/pmndrs/jotai/issues/26
```jsximport { atom, useAtom } from 'jotai'import { useUpdateAtom } from 'jotai/utils'
const countAtom = atom(0)
const Counter = () => {  const [count] = useAtom(countAtom)  return <div>count: {count}</div>}
const Controls = () => {  const setCount = useUpdateAtom(countAtom)  const inc = () => setCount((c) => c + 1)  return <button onClick={inc}>+1</button>}```
<CodeSandbox id="hsyfr" />