diff --git a/erpnext/stock/utils.py b/erpnext/stock/utils.py
index 1598860b165..8ebef95e47f 100644
--- a/erpnext/stock/utils.py
+++ b/erpnext/stock/utils.py
@@ -245,8 +245,7 @@ def get_incoming_rate(args: dict | str, raise_error_if_no_rate: bool = True, fal
 	"""Get Incoming Rate based on valuation method"""
 	from erpnext.stock.stock_ledger import get_previous_sle, get_valuation_rate
 
-	if isinstance(args, str):
-		args = json.loads(args)
+	args = frappe.parse_json(args)
 
 	if not args.get("posting_datetime") and args.get("posting_date"):
 		args["posting_datetime"] = get_combine_datetime(args.get("posting_date"), args.get("posting_time"))