diff --git a/Node/requirements.txt b/Node/requirements.txt
index 458869d..6faad6e 100644
--- a/Node/requirements.txt
+++ b/Node/requirements.txt
@@ -1,6 +1,6 @@
 cffi==1.14.0
 click==7.1.2
-cryptography==2.9.2
+cryptography==3.3.2
 Flask==1.1.2
 func-timeout==4.3.5
 itsdangerous==1.1.0