diff --git a/requirements.txt b/requirements.txt
index 14b3ad3..7861a2c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ certifi==2019.3.9
 cffi==1.12.3
 chardet==3.0.4
 coverage==4.5.3
-cryptography==2.6.1
+cryptography==3.2
 entrypoints==0.3
 flake8==3.7.7
 idna==2.8
diff --git a/setup.py b/setup.py
index 6b2ba73..1f2d7f7 100644
--- a/setup.py
+++ b/setup.py
@@ -36,7 +36,7 @@
         'dev': ['pep8>=1.7.1,<2',
                 'sphinx >= 2.0.1,<3',
                 'sphinxcontrib-apidoc>=0.3.0',
-                'cryptography>=2.6.1,<2.7',
+                'cryptography>=2.6.1,<3.3',
                 ],
         'test': ['coverage>=4.5.3,<5',
                  'flake8>=3.7.7,<4',