diff --git a/requirements.txt b/requirements.txt
index 2c87dcd..5a3e87f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ certifi==2019.6.16
 cffi==1.12.3
 chardet==3.0.4
 Click==7.0
-cryptography==2.7
+cryptography==3.2
 docopt==0.6.2
 enum34==1.1.6
 Flask==1.0.3