diff --git a/requirements.txt b/requirements.txt
index c643c13..01bf6f3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -41,7 +41,7 @@ smartypants==2.0.1
 smmap==4.0.0
 soupsieve==2.2.1
 toml==0.10.2
-tornado==6.1
+tornado==6.3.2
 typing-extensions==3.10.0.2
 typogrify==2.0.7
 Unidecode==1.3.2