diff --git a/requirements.txt b/requirements.txt
index 96b899b..977e631 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ flake8==3.8.4
 Flask==1.1.2
 idna==2.10
 itsdangerous==1.1.0
-Jinja2==2.11.3
+Jinja2==3.1.3
 MarkupSafe==1.1.1
 mccabe==0.6.1
 mypy-extensions==0.4.3