diff --git a/zulip/setup.py b/zulip/setup.py
index 07dbe2c..3eeb418 100755
--- a/zulip/setup.py
+++ b/zulip/setup.py
@@ -63,6 +63,7 @@ package_info = dict(
 setuptools_info = dict(
     install_requires=['requests[security]>=0.12.1',
                       'six',
+                      'typing>=3.5.2.2;python_version<"3.5"',
                       'matrix_client',
                       ],
 )