diff --git a/requirements.txt b/requirements.txt
index e22bd23..51d69a6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ bcrypt==3.1.3
 cffi==1.10.0
 click==6.7
 configparser==3.5.0
-cryptography==1.9
+cryptography==3.2
 et-xmlfile==1.0.1
 Flask==0.12
 Flask-Cors==3.0.2