diff --git a/requirements.txt b/requirements.txt
index c832550..83d9147 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ Flask-WTF==0.14.2
 greenlet==0.4.15
 idna==2.7
 itsdangerous==1.1.0
-Jinja2==2.10
+Jinja2==2.11.3
 Markdown==3.0.1
 MarkupSafe==1.1.0
 monotonic==1.5