diff --git a/parsers/deal_parser.py b/parsers/deal_parser.py
index 5bfec43..631b620 100644
--- a/parsers/deal_parser.py
+++ b/parsers/deal_parser.py
@@ -1,5 +1,6 @@
 from io import BytesIO
 from typing import Optional
+from unittest import mock
 
 from openpyxl.reader.excel import load_workbook
 from openpyxl.utils.cell import get_column_letter
@@ -133,7 +134,10 @@ class DealParser:
         return rows
 
     async def parse(self, file_bytes: bytes) -> ParseDealsExcelResponse:
-        wb = load_workbook(filename=BytesIO(file_bytes))
+        p = mock.patch('openpyxl.styles.fonts.Font.family.max', new=100)
+        p.start()
+
+        wb = load_workbook(filename=BytesIO(file_bytes), data_only=True)
         ws = wb.worksheets[0]
 
         await self._parse_warehouses_and_marketplaces(ws)
diff --git a/requirements.txt b/requirements.txt
index dd9d2bb..335ac28 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ alembic
 python-dotenv
 aiohttp
 aiohttp[speedups]
-openpyxl
+openpyxl==3.0.10
 lexorank-py
 celery[redis]
 celery