diff --git a/requirements.txt b/requirements.txt
index 7a52034..5372b1b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ certifi==2018.4.16
 cffi==1.11.5
 chardet==3.0.4
 click==6.7
-cryptography==2.2.1
+cryptography==3.2
 Flask==1.0.2
 Flask-WTF==0.14.2
 gunicorn==19.8.1