diff --git a/requirements.txt b/requirements.txt
index f7e3a32..73a7984 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ Flask==1.0.2
 Flask-SocketIO==3.0.2
 idna==2.7
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 MarkupSafe==1.0
 numpy==1.15.2
 Pillow==5.3.0