diff --git a/Day61-65/code/project_of_tornado/requirements.txt b/Day61-65/code/project_of_tornado/requirements.txt
index c2cf07d..49b5c70 100644
--- a/Day61-65/code/project_of_tornado/requirements.txt
+++ b/Day61-65/code/project_of_tornado/requirements.txt
@@ -1,7 +1,7 @@
 aiomysql==0.0.20
 asn1crypto==0.24.0
 cffi==1.12.2
-cryptography==2.6.1
+cryptography==3.2
 pycparser==2.19
 PyMySQL==0.9.2
 six==1.12.0