diff --git a/api_source_code/flask_app/requirements.txt b/api_source_code/flask_app/requirements.txt
index 702a213..cddb109 100644
--- a/api_source_code/flask_app/requirements.txt
+++ b/api_source_code/flask_app/requirements.txt
@@ -8,7 +8,7 @@ Flask==1.1.1
 Flask-Limiter==1.1.0
 idna==2.8
 itsdangerous==1.1.0
-Jinja2==2.10.3
+Jinja2==2.11.3
 jmespath==0.9.4
 joblib==0.14.0
 MarkupSafe==1.1.1