diff --git a/requirements-test.txt b/requirements-test.txt
index 6e6306f..9c23fb1 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -1,6 +1,10 @@
 pytest
 dulwich >= 0.18.7
 swh.loader.core
 swh.loader.git >= 0.8
 swh.storage[testing]
 pytest-mock
+types-click
+types-python-dateutil
+types-pyyaml
+types-requests
diff --git a/swh/__init__.py b/swh/__init__.py
index f14e196..8d9f151 100644
--- a/swh/__init__.py
+++ b/swh/__init__.py
@@ -1,4 +1,4 @@
 from pkgutil import extend_path
-from typing import Iterable
+from typing import List
 
-__path__ = extend_path(__path__, __name__)  # type: Iterable[str]
+__path__: List[str] = extend_path(__path__, __name__)