diff --git a/requirements.txt b/requirements.txt
index 13279b7..0f0f82d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ certifi==2017.11.5
 cffi==1.11.2
 chardet==3.0.4
 click==6.7
-cryptography==2.1.3
+cryptography==3.2
 idna==2.6
 isodate==0.6.0
 keyring==10.4.0