diff --git a/requirements.txt b/requirements.txt
index afc461d..6d5ec89 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-tornado==6.0.4
+tornado==6.3.3
 bcrypt==3.1.3
 image==1.5.5
 pymysql==0.7.10