diff --git a/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py b/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
index 0a419ecf3fc..6d06e8291a6 100644
--- a/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
+++ b/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
@@ -8,7 +8,7 @@ import frappe
 from frappe import _
 from frappe.core.doctype.role.role import get_users
 from frappe.model.document import Document
-from frappe.query_builder.functions import Sum
+from frappe.query_builder.functions import Max, Sum
 from frappe.utils import add_days, cint, flt, formatdate, get_datetime, getdate
 
 from erpnext.accounts.utils import get_fiscal_year
@@ -311,13 +311,17 @@ class StockLedgerEntry(Document):
 		if authorized_role:
 			authorized_users = get_users(authorized_role)
 			if authorized_users and frappe.session.user not in authorized_users:
-				last_transaction_time = frappe.db.sql(
-					"""
-					select MAX(timestamp(posting_date, posting_time)) as posting_time
-					from `tabStock Ledger Entry`
-					where docstatus = 1 and is_cancelled = 0 and item_code = %s
-					and warehouse = %s""",
-					(self.item_code, self.warehouse),
+				sle = frappe.qb.DocType("Stock Ledger Entry")
+				last_transaction_time = (
+					frappe.qb.from_(sle)
+					.select(Max(sle.posting_datetime))
+					.where(
+						(sle.docstatus == 1)
+						& (sle.is_cancelled == 0)
+						& (sle.item_code == self.item_code)
+						& (sle.warehouse == self.warehouse)
+					)
+					.run()
 				)[0][0]
 
 				cur_doc_posting_datetime = "{} {}".format(