diff --git a/setup.py b/setup.py
index 7924d88ad..26c4ab81c 100644
--- a/setup.py
+++ b/setup.py
@@ -36,7 +36,7 @@ setup(
         'distro==1.4.0',
         'base58==1.0.0',
         'cffi==1.13.2',
-        'cryptography==2.5',
+        'cryptography==3.4.7',
         'protobuf==3.17.2',
         'prometheus_client==0.7.1',
         'ecdsa==0.13.3',