diff --git a/requirements.txt b/requirements.txt
index 18f4aa8..9fb1003 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ hyperlink==18.0.0
 idna==2.6
 incremental==17.5.0
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 klein==17.10.0
 logzero==1.5.0
 MarkupSafe==1.0