diff --git a/setup.py b/setup.py
index a148b8b14..de103841a 100644
--- a/setup.py
+++ b/setup.py
@@ -33,7 +33,9 @@
       install_requires=[
         # 'PyQt<5.0',
         'numpy',
-        'scipy'],
+        'scipy',
+	'xlrd',
+	'xlwt'],
       description='Data analysis and visualization tool',
       author="New York University",
       author_email='vistrails-dev@vistrails.org',
@@ -41,7 +43,7 @@
       long_description=description,
       license='BSD',
       keywords=['vistrails', 'provenance', 'visualization', 'vtk', 'nyu',
-                'matplotlib', ],
+                'matplotlib'],
       classifiers=[
         'Development Status :: 5 - Production/Stable',
         'Intended Audience :: Science/Research',