diff --git a/requirements.txt b/requirements.txt
index de6a8bb..60d61f7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ certifi==2017.11.5
 cffi==1.11.2
 chardet==3.0.4
 click==6.7
-cryptography==3.2
+cryptography==3.3.2
 Flask==1.0
 gunicorn==19.7.1
 idna==2.5