Problem with updating object property in array of objects in React

I’m making an ecommrece project, in search bar I’m displaying checkboxes with categories from the API, all of those have value active == true by default. This is how I’m mapping them:

{categories.map((category) => {
       return (
              <>
             <input type="checkbox" onClick={() => handleCheckbox(category)} 
             defaultChecked={category.active} key={category.name} />
             <label style={{marginLeft:"5px"}} htmlFor={category.name}>{category.name}</label><br/>
             </> 
)
})}

Then I run this function to change category.active property from true to false, when the exact checkbox is clicked, then I want to update this object using useState

const handleCheckbox = (category) => {
    let tempCategory = category
    if (tempCategory.active == true) {
        tempCategory.active = false;
    } else {
        tempCategory.active = true;
    }
    setCategories({...categories, [tempCategory.id]: tempCategory})
    console.log(category.active)
}

Unfortunetly when I click on the checkbox I’m getting an error from React:

TypeError: categories.map is not a function

And it points to categories.map, I have no idea how to fix it. All I want is to update specific object in the categories array.