diff --git a/setup.py b/setup.py
index 77a0008..2a7b854 100644
--- a/setup.py
+++ b/setup.py
@@ -32,6 +32,7 @@
         'click',
         'PIL',
         'requests',
+        'requests_futures',
         'squarify',
     ],
     entry_points=dict(