diff --git a/setup.py b/setup.py
--- a/setup.py
+++ b/setup.py
@@ -24,8 +24,8 @@ from setuptools import setup, find_packa
 from pip.req import parse_requirements
 
 README = open(os.path.join(os.path.dirname(__file__), 'README.rst')).read()
-INSTALL_REQUIREMENTS = [str(r.req) for r in parse_requirements("requirements/production.txt")]
-TEST_REQUIREMENTS = [str(r.req) for r in parse_requirements("requirements/test.txt")]
+INSTALL_REQUIREMENTS = [str(r.req) for r in parse_requirements("requirements/production.txt", session='hack')]
+TEST_REQUIREMENTS = [str(r.req) for r in parse_requirements("requirements/test.txt", session='hack')]
 
 # allow setup.py to be run from any path
 os.chdir(os.path.normpath(os.path.join(os.path.abspath(__file__), os.pardir)))