diff --git a/requirements.txt b/requirements.txt
index 195d0c6..c0eec64 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ Flask-WTF==0.14.3
 icalendar==4.0.5
 idna==2.9
 itsdangerous==1.1.0
-Jinja2==2.11.1
+Jinja2==2.11.3
 kiwisolver==1.2.0
 lxml==4.3.1
 MarkupSafe==1.1.1