diff --git a/requirements.txt b/requirements.txt
index 8baa169..d570e54 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 tornado-cors==0.6.0
-tornado==5.0.2 # Because https://stackoverflow.com/questions/55452074/bokeh-serve-show-myapp
+tornado==6.0.4 # Because https://stackoverflow.com/questions/55452074/bokeh-serve-show-myapp
 lxml==4.4.2
 python-dotenv==0.12.0
 redis==3.3.11