diff --git a/service_1/requirements.txt b/service_1/requirements.txt
index b528113..ddc60d7 100644
--- a/service_1/requirements.txt
+++ b/service_1/requirements.txt
@@ -7,7 +7,7 @@ Flask-PyMongo==2.3.0
 idna==2.9
 importlib-metadata==1.6.0
 itsdangerous==1.1.0
-Jinja2==2.11.1
+Jinja2==2.11.3
 MarkupSafe==1.1.1
 more-itertools==8.2.0
 packaging==20.3