diff --git a/requirements_dev.txt b/requirements_dev.txt
index a5bd712..5a37da0 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -12,7 +12,7 @@ docutils==0.13.1
 flake8==3.4.1
 idna==2.5
 imagesize==0.7.1
-Jinja2==2.9.6
+Jinja2==2.11.3
 MarkupSafe==1.0
 mccabe==0.6.1
 pathtools==0.1.2