diff --git a/setup.py b/setup.py
index 63e8ac79..3ea87712 100644
--- a/setup.py
+++ b/setup.py
@@ -151,6 +151,7 @@ def find_package_data(packages):
     package_data = package_data,
     include_package_data = True,
     install_requires = [
+        'networkx==1.11',
         'hyperopt',
         'nose',
         'NumPy==1.11.0',