diff --git a/shub/deploy.py b/shub/deploy.py
index 0170e1f8..cdafabc5 100644
--- a/shub/deploy.py
+++ b/shub/deploy.py
@@ -1,25 +1,25 @@
 from __future__ import absolute_import
-import os
+
 import glob
+import json
+import os
 import shutil
 import tempfile
-import json
-from six.moves.urllib.parse import urljoin
+from typing import AnyStr, Optional, Union
 
-import click
-import toml
 # Not used in code but needed in runtime, don't remove!
 import setuptools
 import setuptools.msvc  # noqa
 
-from shub.config import (list_targets_callback, load_shub_config,
-                         SH_IMAGES_REGISTRY)
-from shub.exceptions import (BadParameterException, NotFoundException,
-                             ShubException)
+import click
+import toml
+from six.moves.urllib.parse import urljoin
+
+from shub.config import SH_IMAGES_REGISTRY, list_targets_callback, load_shub_config
+from shub.exceptions import BadParameterException, NotFoundException, ShubException
+from shub.image.upload import upload_cmd
 from shub.utils import (create_default_setup_py, create_scrapinghub_yml_wizard,
                         inside_project, make_deploy_request, run_python)
-from shub.image.upload import upload_cmd
-
 
 HELP = """
 Deploy the current folder's Scrapy project to Scrapy Cloud.
@@ -193,11 +193,15 @@ def _get_pipfile_requirements(tmpdir=None):
     return open(_add_sources(convert_deps_to_pip(deps), _sources=sources.encode(), tmpdir=tmpdir), 'rb')
 
 
-def _add_sources(_reqs_file, _sources, tmpdir=None):
+def _add_sources(_requirements: Union[str, list], _sources: bytes, tmpdir: Optional[AnyStr] = None) -> str:
     tmp = tempfile.NamedTemporaryFile(delete=False, suffix="-requirements.txt", dir=tmpdir)
     tmp.write(_sources + b'\n')
-    with open(_reqs_file, 'rb') as f:
-        tmp.write(f.read())
+    # Keep backward compatibility with pipenv<=2022.8.30
+    if isinstance(_requirements, list):
+        tmp.write('\n'.join(_requirements).encode('utf-8'))
+    else:
+        with open(_requirements, 'rb') as f:
+            tmp.write(f.read())
     tmp.flush()
     tmp.close()
     return tmp.name
diff --git a/tests/test_deploy.py b/tests/test_deploy.py
index 6ea2ed53..303fda63 100644
--- a/tests/test_deploy.py
+++ b/tests/test_deploy.py
@@ -5,7 +5,7 @@
 
 import os
 import unittest
-from unittest.mock import patch
+from unittest.mock import patch, Mock
 
 import requests
 from click.testing import CliRunner
@@ -256,6 +256,20 @@ def test_egg_glob_pattern(self):
         self.assertEqual(len(files_main['eggs']), 4)
         self.assertIn('main content', files_main['eggs'])
 
+    def test_add_sources(self):
+        convert_deps_to_pip = Mock(
+            side_effect=[
+                './requirements.txt',
+                ['package==0.0.0', 'hash-package==0.0.1', 'hash-package2==0.0.1'],
+            ],
+        )
+        _sources = (
+            b'-i https://pypi.python.org/simple '
+            b'--extra-index-url https://example.external-index.org/simple'
+        )
+        self.assertIsInstance(deploy._add_sources(convert_deps_to_pip(), _sources), str)
+        self.assertIsInstance(deploy._add_sources(convert_deps_to_pip(), _sources), str)
+
     def pipfile_test(self, req_name):
         with self.runner.isolated_filesystem():
             with open('./main.egg', 'w') as f: