diff --git a/requirements.txt b/requirements.txt
index 4c09f2d..a7ebf65 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ docutils==0.14
 flake8==3.5.0
 idna==2.6
 imagesize==1.0.0
-Jinja2==2.10
+Jinja2==2.11.3
 livereload==2.5.1
 MarkupSafe==1.0
 mccabe==0.6.1