diff --git a/docs/pages/examples/OnRowExample.tsx b/docs/pages/examples/OnRowExample.tsx
index eeea95d..77d669b 100644
--- a/docs/pages/examples/OnRowExample.tsx
+++ b/docs/pages/examples/OnRowExample.tsx
@@ -28,8 +28,8 @@ export default function OnRowClickExample() {
   return (
     <>
       <Group>
-        <Notification disallowClose title="click on row to highlight" />
-        <Notification disallowClose title="hover over column fish to highlight cell" />
+        <Notification withCloseButton={false} title="click on row to highlight" />
+        <Notification withCloseButton={false} title="hover over column fish to highlight cell" />
       </Group>
       <DataGrid
         data={demoData.slice(0, 10)}
diff --git a/src/RowSelection.tsx b/src/RowSelection.tsx
index 19a4ebc..0cd7c9b 100644
--- a/src/RowSelection.tsx
+++ b/src/RowSelection.tsx
@@ -14,8 +14,8 @@ export const getRowSelectionColumn = <TData extends RowData>(): ColumnDef<TData,
   cell: ({ row }) => (
     <Checkbox disabled={!row.getCanSelect()} checked={row.getIsSelected()} onChange={row.getToggleSelectedHandler()} />
   ),
-  size: 40,
-  minSize: 40,
-  maxSize: 40,
+  size: 44,
+  minSize: 44,
+  maxSize: 44,
   enableResizing: false,
 });