diff --git a/requirements.txt b/requirements.txt
index 954f313..5e0afae 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
 Flask==1.0.3
 gunicorn==19.9.0
 idna==2.8