diff --git a/erpnext/stock/get_item_details.py b/erpnext/stock/get_item_details.py
index 0d68d19a5c3..aa61f6cf43d 100644
--- a/erpnext/stock/get_item_details.py
+++ b/erpnext/stock/get_item_details.py
@@ -659,8 +659,8 @@ def get_item_tax_info(
 	doc: Document | str | None,
 	tax_category: str,
 	item_codes: list | str,
-	item_rates: dict | None = None,
-	item_tax_templates: dict | None = None,
+	item_rates: dict | str | None = None,
+	item_tax_templates: dict | str | None = None,
 ):
 	out = {}