diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index 7ded266c62a..5c7102b1ad7 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -429,3 +429,4 @@ execute:frappe.db.set_single_value("Accounts Settings", "show_account_balance",
 erpnext.patches.v16_0.update_currency_exchange_settings_for_frankfurter #2025-12-11
 erpnext.patches.v15_0.create_accounting_dimensions_in_advance_taxes_and_charges
 erpnext.patches.v16_0.set_ordered_qty_in_quotation_item
+erpnext.patches.v15_0.replace_http_with_https_in_sales_partner
diff --git a/erpnext/patches/v15_0/replace_http_with_https_in_sales_partner.py b/erpnext/patches/v15_0/replace_http_with_https_in_sales_partner.py
new file mode 100644
index 00000000000..80bc418920a
--- /dev/null
+++ b/erpnext/patches/v15_0/replace_http_with_https_in_sales_partner.py
@@ -0,0 +1,10 @@
+import frappe
+from frappe import qb
+from pypika.functions import Replace
+
+
+def execute():
+	sp = frappe.qb.DocType("Sales Partner")
+	qb.update(sp).set(sp.partner_website, Replace(sp.partner_website, "http://", "https://")).where(
+		sp.partner_website.rlike("^http://.*")
+	).run()
diff --git a/erpnext/setup/doctype/sales_partner/sales_partner.py b/erpnext/setup/doctype/sales_partner/sales_partner.py
index c6b0b944de7..7b754a6458e 100644
--- a/erpnext/setup/doctype/sales_partner/sales_partner.py
+++ b/erpnext/setup/doctype/sales_partner/sales_partner.py
@@ -50,8 +50,17 @@ class SalesPartner(WebsiteGenerator):
 		if not self.route:
 			self.route = "partners/" + self.scrub(self.partner_name)
 		super().validate()
-		if self.partner_website and not self.partner_website.startswith("http"):
-			self.partner_website = "http://" + self.partner_website
+		if self.partner_website:
+			from urllib.parse import urlsplit, urlunsplit
+
+			# scrub http
+			parts = urlsplit(self.partner_website)
+			if not parts.netloc and parts.path:
+				parts = parts._replace(netloc=parts.path, path="")
+			if not parts.scheme or parts.scheme == "http":
+				parts = parts._replace(scheme="https")
+
+			self.partner_website = urlunsplit(parts)
 
 	def get_context(self, context):
 		address = frappe.db.get_value(