diff --git a/1_python_server/requirements.txt b/1_python_server/requirements.txt
index 1f28eae..48145cb 100644
--- a/1_python_server/requirements.txt
+++ b/1_python_server/requirements.txt
@@ -5,7 +5,7 @@ dlib==19.16.0
 Flask==1.0.2
 idna==2.7
 itsdangerous==1.1.0
-Jinja2==2.10
+Jinja2==2.11.3
 jsonschema==2.6.0
 kiwisolver==1.0.1
 MarkupSafe==1.1.1