diff --git a/requirements.txt b/requirements.txt
index 6cac22f..8172152 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-tornado==4.4.2
+tornado==6.3.3
 mysqlclient==1.3.9
 progressbar2==3.12.0
 raven==5.32.0