diff --git a/setup.py b/setup.py
index bb8b08bd73b1a52f7d31086275a375fe3d46d274..4dbf508556761fc2dae8583e860c4e130afdc259 100755
--- a/setup.py
+++ b/setup.py
@@ -27,7 +27,7 @@ README = open(os.path.join(os.path.dirname(__file__), 'README.rst')).read()
 python_requirements = ">=3.5,<3.9"
 
 install_requirements = [
-    'cryptography>=2.9,<2.10',
+    'cryptography>=3.2,<3.3',
     'python-dateutil>=2.8,<2.9',
 ]