diff --git a/requirements.txt b/requirements.txt
index 7a07abf..04d07b9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,4 +8,4 @@ PyJWT==1.7.1
 requests==2.25.1
 six==1.16.0
 urllib3==1.26.6
-cryptography==2.6.1
+cryptography==39.0.1
diff --git a/setup.py b/setup.py
index 16e1d6e..54754ca 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,7 @@
 install_requires = ['requests>=2.25.1,<2.26.1',
                     'urllib3>=1.26.5,<1.26.7',
                     'pyjwt>=1.7.1,<1.8.0',
-                    'cryptography>=2.6.1,<2.7.0',
+                    'cryptography>=2.6.1,<39.1.0',
                     ]
 
 setup(