diff --git a/requirements.txt b/requirements.txt
index 8e5e088..b5e70e9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ Click==7.0
 configparser==3.5.0
 coverage==4.5.2
 coveralls==1.5.1
-cryptography==2.4.2
+cryptography==3.2
 docopt==0.6.2
 docutils==0.14
 enum34==1.1.6