diff --git a/requirements.txt b/requirements.txt
index ce2bbc5..fd9ed08 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 cffi==1.14.0
 click==7.1.2
-cryptography==2.9.2
+cryptography==3.2
 Flask==1.1.2
 gevent==20.6.2
 greenlet==0.4.16