diff --git a/sub1/requirements.txt b/sub1/requirements.txt
index 0a9d77b..30b3426 100644
--- a/sub1/requirements.txt
+++ b/sub1/requirements.txt
@@ -4,7 +4,7 @@ chardet==3.0.4
 cycler==0.10.0
 folium==0.10.1
 idna==2.8
-Jinja2==2.10.3
+Jinja2==2.11.3
 kiwisolver==1.1.0
 MarkupSafe==1.1.1
 matplotlib==3.1.2