diff --git a/setup.py b/setup.py
index a78caee84..0a5c004ad 100755
--- a/setup.py
+++ b/setup.py
@@ -43,6 +43,7 @@ if platform.system() in ['Linux', 'FreeBSD', 'DragonFly']:
 extras_require = {
     'hardware': requirements_hw,
     'fast': ['pycryptodomex'],
+    ':python_version < "3.5"': ['typing>=3.0.0'],
 }
 extras_require['full'] = extras_require['hardware'] + extras_require['fast']