diff --git a/requirements.txt b/requirements.txt
index 0ec76a4..d7a03fe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ boto==2.40.0
 chardet==2.3.0
 click==6.7
 configparser==3.5.0
-cryptography==1.5
+cryptography==3.2
 enum34==1.1.6
 Flask==0.12
 future==0.15.2