diff --git a/requirements.txt b/requirements.txt
index ca035a5..cb45427 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ docutils==0.13.1
 esptool==1.3
 html5lib==0.999
 imagesize==0.7.1
-Jinja2==2.9.5
+Jinja2==2.11.3
 jsonschema==2.6.0
 language-selector==0.1
 louis==2.6.4