diff --git a/requirements.txt b/requirements.txt
index dab5fbc..c42ec3f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ idna==2.7
 imagesize==1.1.0
 ipaddress==1.0.22
 isodate==0.6.0
-Jinja2==2.10
+Jinja2==2.11.3
 livereload==2.5.2
 lxml==4.2.5
 MarkupSafe==1.0