diff --git a/setup.py b/setup.py
index e5668545..90902d74 100644
--- a/setup.py
+++ b/setup.py
@@ -34,7 +34,7 @@
     # Extend/modify the list to include/exclude other items as need be
     package_data={'paprika': ["data/*.dat"]
                   },
-    include_package_data=True, install_requires=['numpy', 'parmed', 'simtk']
+    include_package_data=True, install_requires=['numpy']
 
     # Additional entries you may want simply uncomment the lines you want and fill in the data
     # author_email='me@place.org',      # Author email