diff --git a/api_source_code/flask_app/requirements.txt b/api_source_code/flask_app/requirements.txt
index 702a213..727e5a0 100644
--- a/api_source_code/flask_app/requirements.txt
+++ b/api_source_code/flask_app/requirements.txt
@@ -20,7 +20,7 @@ pytz==2019.3
 requests==2.22.0
 s3transfer==0.2.1
 six==1.13.0
-urllib3==1.25.6
+urllib3==1.26.5
 virtualenv==16.7.6
 Werkzeug==0.16.0
 zope.interface==4.7.1