diff --git a/backend/requirements.txt b/backend/requirements.txt
index 934af61..190d805 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -1,6 +1,6 @@
 isort==4.3.21
 croniter==0.3.34
-cryptography==2.9.2
+cryptography==3.2
 redis==2.10.6
 pymysql==0.9.2
 celery==3.1.22