diff --git a/requirements.txt b/requirements.txt
index 74eafd3..ee819ce 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-cryptography==3.4.2
+cryptography==39.0.1
 hyper==0.7.0
 PyJWT==2.0.1
diff --git a/setup.py b/setup.py
index c9b828c..bbf7db4 100644
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,7 @@
   ],
   classifiers = [],
   install_requires=[
-    'cryptography<=3.3.2',
+    'cryptography<39.0.2',
     'hyper',
     'pyjwt',
   ],