1 files changed, 1 insertions, 0 deletions
diff --git a/setup.py b/setup.py
index a230b66..52bca80 100644
--- a/setup.py
+++ b/setup.py
@@ -13,6 +13,7 @@ if 'sdist' in sys.argv:
 VERSION = __import__('openid').__version__
 INSTALL_REQUIRES = [
     'six',
+    'cryptography',
     'lxml;platform_python_implementation=="CPython"',
     'lxml <4.0;platform_python_implementation=="PyPy"',
 ]