diff --git a/mavlink-websocket/requirements.txt b/mavlink-websocket/requirements.txt
index 34eb426..855494e 100644
--- a/mavlink-websocket/requirements.txt
+++ b/mavlink-websocket/requirements.txt
@@ -1,2 +1,2 @@
 pymavlink
-tornado==5.0.2
+tornado==6.3.3