diff --git a/requirements-test.txt b/requirements-test.txt
index 804503e..b0b21a1 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -1,5 +1,11 @@
 pytest
 pytest-mock
 confluent-kafka
 pytest-redis
+pyyaml
 requests_mock
+
+types-flask
+types-pyyaml
+types-redis
+types-requests
diff --git a/swh/__init__.py b/swh/__init__.py
index fa32dfd..2933e6c 100644
--- a/swh/__init__.py
+++ b/swh/__init__.py
@@ -1,9 +1,9 @@
 # Copyright (C) 2021  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 from pkgutil import extend_path
-from typing import Iterable
+from typing import List
 
-__path__: Iterable[str] = extend_path(__path__, __name__)
+__path__: List[str] = extend_path(__path__, __name__)