diff --git a/examples/requirements.txt b/examples/requirements.txt
index 9e5c734..ba62b51 100644
--- a/examples/requirements.txt
+++ b/examples/requirements.txt
@@ -1,4 +1,4 @@
-tornado==4.0.2
+tornado==6.3.2
 websocket-client==0.21.0
 gunicorn==19.2.1
 pysqlite==2.6.3