diff --git a/requirements.txt b/requirements.txt
index 80f9746..cd1cda7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ coverage==4.5.1
 Flask==1.0.2
 Flask-SQLAlchemy==2.3.2
 itsdangerous==0.24
-Jinja2==2.11.3
+Jinja2==3.1.3
 Markdown==2.6.11
 MarkupSafe==1.0
 more-itertools==4.2.0