Prevent user from entering negative number validation material-table - reactjs

Question

How can I prevent the user from adding a negative number to my table? I thought that having the type: numeric would do the trick but I still can enter a negative number into it.
Could I create a function and added to my promise?
<MaterialTable
aria-label="List of pseudopotentials"
icons={tableIcons}
title="Pseudopotentials"
columns={[
{title: 'Element', field: 'kind', editable: 'never'},
{title: 'Atomic Mass (AMU)', field: 'atomic_mass', type: 'numeric'}, <----- TYPE NUMERIC HERE
{title: 'Filename', field: 'filename', editable: 'never'},
]}
data={createTable(selectedPseudos, customAtomicMasses)}
options={{
paging: false,
rowStyle: (x: {tableData: {id: number}}) => {
if (x.tableData.id % 2) {
return {backgroundColor: '#ddd'}
}
},
maxBodyHeight: '25em',
headerStyle: {
backgroundColor: '#ddd',
padding: '0.25em 1em',
fontWeight: 'bolder',
},
}}
editable={{
/** NEED TO PREVENT NEGATIVE NUMBER*/
onRowUpdate: (newData) =>
new Promise((resolve) => {
const newMasses = {...customAtomicMasses}
newMasses[newData.kind] = newData.atomic_mass
setCustomAtomicMasses(newMasses)
resolve(0)
}),
}}
actions={[
{
icon: () => {
return <Search aria-label="search-pseudopotentials" />
},
tooltip: 'Search pseudopotentials',
onClick: (_event, rowData) => {
setModalKind(rowData.kind)
setShowModal(true)
},
},
]}
></MaterialTable>