diff --git a/requirements.txt b/requirements.txt
index 70c5ae0..49fa59d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,6 +17,6 @@ Mastodon.py==1.5.2
 Shapely==1.8.0
 TwitterAPI==2.7.9.1
 threema.gateway==7.0.1
-tornado==6.1
+tornado==6.3.2
 ujson==5.4.0
 urllib3==1.26.7