diff --git a/requirements.txt b/requirements.txt
index 8e8a576..c0916f8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ Flask==0.12.2
 idna==2.6
 idna-ssl==1.0.1
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 MarkupSafe==1.0
 multidict==4.1.0
 requests==2.18.4