diff --git a/setup.py b/setup.py
index a190f93..5215c19 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,8 @@
 
 requires = [
     'docopt==0.6.2',
-    'scipy==0.19.0',
+    'scipy',
+    'numpy',
 ]
 
 extras = {