diff --git a/requirements.txt b/requirements.txt
index fde87b4..e73d7a6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ cryptography==2.1.4
 Flask==0.12.2
 idna==2.6
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 MarkupSafe==1.0
 pycparser==2.18
 pyOpenSSL==17.5.0