diff --git a/frontend/src/components/BuyDialog.tsx b/frontend/src/components/BuyDialog.tsx
index c707389..918a285 100644
--- a/frontend/src/components/BuyDialog.tsx
+++ b/frontend/src/components/BuyDialog.tsx
@@ -29,7 +29,8 @@ const BuyDialog = ({
     return (
 
 
-        <Dialog open={openDialog} onClose={() => setOpenDialog(false)} disableScrollLock={true}>
+        <Dialog open={openDialog} onClose={() => setOpenDialog(false)} disableScrollLock={true} PaperProps={{ sx: { minHeight: '500px', maxHeight: '80vh' } }}
+>
             <DialogTitle>在庫登録</DialogTitle>
             <DialogContent>
                 <Box sx={{ pt: 1 }}>