diff --git a/mock/requirements.txt b/mock/requirements.txt
index 45f2dc0..f91a2a0 100644
--- a/mock/requirements.txt
+++ b/mock/requirements.txt
@@ -6,7 +6,7 @@ Flask==1.1.1
 hbmqtt==0.9.5
 idna==2.8
 itsdangerous==1.1.0
-Jinja2==2.10.1
+Jinja2==2.11.3
 MarkupSafe==1.1.1
 paho-mqtt==1.4.0
 passlib==1.7.1