diff --git a/setup.py b/setup.py
index 6213c82..3ef15ca 100644
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@
     'stevedore>=1.10.0',
     'requests>=2.7.0',
     'cryptography>=3.2; python_version >= "3.6"',
-    'cryptography==3.2; python_version == "3.5" or python_version == "2.7"',
+    'cryptography==3.3.2; python_version == "3.5" or python_version == "2.7"',
     'six>=1.10.0',
     'ndg-httpsclient>=0.4.0',
     'pyopenssl>=0.15.1; python_version >= "3.6"',