diff --git a/setup.py b/setup.py
index e81123ab..599f27f1 100644
--- a/setup.py
+++ b/setup.py
@@ -29,7 +29,7 @@
          'Flask-Login>=0.2.11',
          'boto3<2,>=1.7.83',
          'contextlib2>=0.4.0',
-         'cryptography<2.4,>=2.3',
+         'cryptography>=3.2',
          'gds-metrics>=0.2.0,<1',
          'govuk-country-register>=0.3.0',
          'mailchimp3==3.0.6',