diff --git a/site/yasm/requirements.txt b/site/yasm/requirements.txt
index 5b257e04..c1ed21d6 100644
--- a/site/yasm/requirements.txt
+++ b/site/yasm/requirements.txt
@@ -33,7 +33,7 @@ ipython==6.4.0
 ipython-genutils==0.2.0
 itsdangerous==0.24
 jedi==0.12.1
-Jinja2==2.10.1
+Jinja2==2.11.3
 MarkupSafe==1.1.1
 mccabe==0.6.1
 more-itertools==4.2.0