diff --git a/requirements.txt b/requirements.txt
index 293f443..99723b8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 colorama==0.4.3
 peewee==3.13.1
 peewee-db-evolve==3.7.3
-tornado==6.0.3
+tornado==6.3.3