diff --git a/requirements_dashboard.txt b/requirements_dashboard.txt
index edde9b7..bb4d955 100644
--- a/requirements_dashboard.txt
+++ b/requirements_dashboard.txt
@@ -1,3 +1,4 @@
+tornado==4.5.1
 bokeh==0.12.7
 futures==3.1.1
-pandas==0.20.2
\ No newline at end of file
+pandas==0.20.2