diff --git a/label-reader/modules/web_app_api/requirements.txt b/label-reader/modules/web_app_api/requirements.txt
index 5e94d40..576a7d7 100644
--- a/label-reader/modules/web_app_api/requirements.txt
+++ b/label-reader/modules/web_app_api/requirements.txt
@@ -1,6 +1,6 @@
 # Runtime
 azure-iot-device==2.10.0
-tornado==6.1
+tornado==6.3.3
 opencensus-ext-azure==1.1.1
 opencensus-ext-logging==0.1.1
 opencensus-ext-requests==0.7.6