diff --git a/Back-end/requirements.txt b/Back-end/requirements.txt
index e38e8ce..72cd852 100644
--- a/Back-end/requirements.txt
+++ b/Back-end/requirements.txt
@@ -2,7 +2,7 @@ astroid==2.4.2
 blinker==1.4
 cffi==1.14.0
 click==7.1.2
-cryptography==2.9.2
+cryptography==3.2
 csvalidate==1.1.1
 Flask==1.1.2
 Flask-Cors==3.0.8