diff --git a/src/handlers/supplierHandler.js b/src/handlers/supplierHandler.js
index 58e02674..f4f51811 100644
--- a/src/handlers/supplierHandler.js
+++ b/src/handlers/supplierHandler.js
@@ -985,12 +985,17 @@ exports.getSuppliers = async (req, reply) => {
 
     let tankers = await Tanker.find(tankerQuery);
 
-    if (price_from && price_to) {
-      tankers = tankers.filter(tanker => {
-        const tankerPrice = parsePrice(tanker.price);
-        return tankerPrice >= priceFrom && tankerPrice <= priceTo;
-      });
-    }
+const isValidPrice = (val) => {
+  const num = parseInt(val);
+  return !isNaN(num) && isFinite(num);
+};
+
+if (isValidPrice(price_from) && isValidPrice(price_to)) {
+  tankers = tankers.filter(tanker => {
+    const tankerPrice = parsePrice(tanker.price);
+    return tankerPrice >= priceFrom && tankerPrice <= priceTo;
+  });
+}
 
     tankers = tankers.filter(tanker => {
       const key = `${tanker.supplierId}_${tanker.tankerName}`;