How to remove box shadow of material UI accordion component in react?

I am trying to implement accordion using Material UI.

Here is the code:

      <Accordion>
            <AccordionSummary expandIcon={<ExpandMoreIcon />} aria-controls="panel1a-content" id="panel1a-header">
                <Typography>Accordion 1</Typography>
            </AccordionSummary>
            <AccordionDetails>
                <Typography>Lorem ipsum</Typography>
                <Typography>Lorem ipsum</Typography>
                <Typography>Lorem ipsum</Typography>
            </AccordionDetails>
        </Accordion>

Here is what I get as output

As one can see there is a box shadow around the accordion and I want to remove it.
After inspecting the component I was able to find the class responsible for the box shadow.

When I disable the box shadow the shadow around the accordion disappears.
I followed the MUI documentation on how to customize MUI component.

Here is my code:

      <Accordion sx={{ "& .MuiPaper-root-MuiAccordion-root": { boxShadow: "none" } }}>
            <AccordionSummary expandIcon={<ExpandMoreIcon />} aria-controls="panel1a-content" id="panel1a-header">
                <Typography>Accordion 1</Typography>
            </AccordionSummary>
            <AccordionDetails>
                <Typography>Lorem ipsum</Typography>
                <Typography>Lorem ipsum</Typography>
                <Typography>Lorem ipsum</Typography>
            </AccordionDetails>
        </Accordion>

But the changes don’t happen. Please guide me if I am missing something.

>Solution :

Just set elevation prop to zero.

<Accordion elevation={0}>...</Accordion>