diff --git a/requirements.txt b/requirements.txt
index 1320223..37f3e32 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ Flask-Testing==0.8.1
 Flask-WTF==0.14.3
 httplib2==0.19.1
 itsdangerous==1.1.0
-Jinja2==2.11.3
+Jinja2==3.1.3
 linecache2==1.0.0
 Mako==1.1.4
 MarkupSafe==1.1.1