diff --git a/src/components/dashboard/machinary-office/Form/ConfirmForm.jsx b/src/components/dashboard/machinary-office/Form/ConfirmForm.jsx
index 754abce..4e7ac76 100644
--- a/src/components/dashboard/machinary-office/Form/ConfirmForm.jsx
+++ b/src/components/dashboard/machinary-office/Form/ConfirmForm.jsx
@@ -41,7 +41,9 @@ const ConfirmForm = ({ open, handleClose, rowId, confirmData }) => {
     setDescription(event.target.value);
   };
   const handleAmountChange = (event) => {
-    setProposedAmount(event.target.value);
+    if (/^\d*$/.test(event.target.value)) {
+      setProposedAmount(event.target.value);
+    }
     formik.handleChange(event);
   };
 
@@ -65,6 +67,11 @@ const ConfirmForm = ({ open, handleClose, rowId, confirmData }) => {
           name="proposed_amount"
           label={t("MachinaryOffice.proposed_amount")}
           type="number"
+          inputProps={{
+            min: 0,
+            inputMode: "numeric",
+            pattern: "[0-9]*",
+          }}
           variant="outlined"
           value={proposedAmount}
           onChange={handleAmountChange}