diff --git a/flask/requirements.txt b/flask/requirements.txt
index da7559f..606a5ee 100644
--- a/flask/requirements.txt
+++ b/flask/requirements.txt
@@ -2,7 +2,7 @@ astroid==2.3.2
 cffi==1.13.1
 Click==7.0
 colorama==0.4.1
-cryptography==2.8
+cryptography==3.2
 Flask==1.1.1
 Flask-MySQL==1.4.0
 isort==4.3.21