diff --git a/requirements.txt b/requirements.txt
index 48b9a19..f4d14ee 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ Flask==1.0.2
 gunicorn==19.8.1
 idna==2.6
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 MarkupSafe==1.0
 numpy==1.14.4
 packaging==17.1