diff --git a/setup.py b/setup.py
index dad9ab9bb..98780dd5a 100755
--- a/setup.py
+++ b/setup.py
@@ -10,7 +10,7 @@ install_requires = [
     "boto>=2.36.0",
     "boto3>=1.6.16,<1.8",
     "botocore>=1.9.16,<1.11",
-    "cryptography>=2.0.0",
+    "cryptography>=2.3.0",
     "requests>=2.5",
     "xmltodict",
     "six>1.9",