diff --git a/setup.py b/setup.py
index 3632d1a..1fa327f 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,8 @@
     install_requires=[
         'numpy',
         'matplotlib',
-        'opencv-python'
+        'opencv-python',
+        'cupy'
 
         # Spams PyPI install is currently broken
         # 'spams'