diff --git a/Dockerfile b/Dockerfile
index 8009746c81d332b128e4a3e4ba899f4cbe8694e5..5ceff04fe02aaf5101a0e4546cd25dd714501bf1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3-slim as base
+FROM python:3.9-slim as base
 
 WORKDIR /document_service
 ENV PYTHONUNBUFFERED True
diff --git a/src/prozorro_sale/document_service/utils.py b/src/prozorro_sale/document_service/utils.py
index d1eab193aebb1904fa935fad1abe4d8e22633918..b1f5d6a7bef89a51a31c54bc2ce5d0d9d122e3ee 100644
--- a/src/prozorro_sale/document_service/utils.py
+++ b/src/prozorro_sale/document_service/utils.py
@@ -2,7 +2,7 @@ import sys
 import asyncio
 
 from aiohttp import web
-from aiohttp.client_exceptions import ClientConnectorError, ServerTimeoutError, ClientPayloadError
+from aiohttp.client_exceptions import ClientConnectorError, ClientPayloadError, ClientResponseError, ServerTimeoutError
 from aiohttp.web_response import Response
 
 from prozorro_sale.document_service import errors
@@ -55,6 +55,12 @@ async def excepts_errors_middleware(request, handler):
             data={'error': 'Remote storage broken. Please try again later.'},
             status=424
         )
+    except ClientResponseError as ex:
+        LOG.warning(f'Storage response error:\n{ex}', stack_info=False)
+        return web.json_response(
+            data={'error': 'Remote storage response cannot be parsed. Please try again later.'},
+            status=424
+        )
 
 
 def critical(func):