diff --git a/mypy.ini b/mypy.ini
index f2cab72..cabc284 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -1,25 +1,26 @@
 [mypy]
 namespace_packages = True
 warn_unused_ignores = True
 
 # support for django magic: https://github.com/typeddjango/django-stubs
 plugins = mypy_django_plugin.main, mypy_drf_plugin.main
 
 [mypy.plugins.django-stubs]
 django_settings_module = swh.auth.tests.django.app.apptest.settings
 
 # 3rd party libraries without stubs (yet)
 
 [mypy-jose.*]
 ignore_missing_imports = True
 
 [mypy-keycloak.*]
 ignore_missing_imports = True
 
 [mypy-pkg_resources.*]
 ignore_missing_imports = True
 
 [mypy-pytest.*]
 ignore_missing_imports = True
 
-
+[mypy-yaml.*]
+ignore_missing_imports = True
diff --git a/requirements.txt b/requirements.txt
index a536a34..957da68 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,7 @@
 # Add here external Python modules dependencies, one per line. Module names
 # should match https://pypi.python.org/pypi names. For the full spec or
 # dependency lines, see https://pip.readthedocs.org/en/1.1/requirements.html
 python-keycloak >= 0.19.0
+PyYAML
+click
+types-click
diff --git a/swh/__init__.py b/swh/__init__.py
index e780381..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__: Iterable[str] = extend_path(__path__, __name__)
+__path__: List[str] = extend_path(__path__, __name__)