diff --git a/setup.py b/setup.py
index 446b5ec..f728655 100644
--- a/setup.py
+++ b/setup.py
@@ -38,7 +38,9 @@ setup(name='qpms',
         version = "0.2.993",
         packages=['qpms'],
         setup_requires=['cython>0.28'],
-        install_requires=['cython>=0.21','quaternion','spherical_functions','py_gmm'],
+        install_requires=['cython>=0.21','quaternion','spherical_functions',
+            #'py_gmm' # no longer needed
+            ],
         dependency_links=['https://github.com/texnokrates/py_gmm','https://github.com/moble/quaternion','https://github.com/moble/spherical_functions'],
         ext_modules=cythonize([qpms_c], include_path=['qpms']),
         cmdclass = {'build_ext': build_ext},