diff --git a/requirements.txt b/requirements.txt
index b848042..39fef06 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ idna==2.7
 imagesize==1.0.0
 isort==4.3.4
 jdcal==1.4
-Jinja2==2.10
+Jinja2==2.11.3
 lazy-object-proxy==1.3.1
 livereload==2.5.2
 MarkupSafe==1.0