diff --git a/python/requirements.txt b/python/requirements.txt
index e998538..36a795c 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -1,5 +1,5 @@
 CouchDB==1.2
 pyzmq==19.0.1
-tornado==6.3.3
+tornado==6.4.1
 pyzmq==19.0.1