diff --git a/requirements.txt b/requirements.txt
index 2f7eb03..994d3e6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ Flask==1.1.1
 gunicorn==19.9.0
 itsdangerous==1.1.0
 jdcal==1.4.1
-Jinja2==2.10.1
+Jinja2==2.11.3
 MarkupSafe==1.1.1
 numpy==1.17.0
 openpyxl==2.6.2