diff --git a/requirements.txt b/requirements.txt
index 8bd5501..0fc8306 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ Flask==1.0.2
 gunicorn==19.9.0
 idna==2.8
 itsdangerous==1.1.0
-Jinja2==2.10
+Jinja2==2.11.3
 MarkupSafe==1.1.1
 requests==2.21.0
 urllib3==1.24.1