diff --git a/requirements.txt b/requirements.txt
index f7b90ae..480b11b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ click==6.7
 Flask==1.0
 idna==2.5
 itsdangerous==0.24
-Jinja2==2.9.6
+Jinja2==2.11.3
 MarkupSafe==1.0
 packaging==16.8
 pyparsing==2.2.0