diff --git a/requirements.txt b/requirements.txt
index 3144582..3dbb2b3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ Flask-Menu==0.7.0
 Flask-Mail==0.9.1
 Flask-Restless==0.17.0
 Pillow==5.2.0
-cryptography==2.3
+cryptography==39.0.1
 SQLAlchemy-Utils==0.33.3
 pdfkit==0.6.1
 itsdangerous==0.24