diff --git a/flask-app/requirements.txt b/flask-app/requirements.txt
old mode 100755
new mode 100644
index 47b687c..cdba822
--- a/flask-app/requirements.txt
+++ b/flask-app/requirements.txt
@@ -4,5 +4,5 @@ itsdangerous==0.24
 Jinja2==2.8
 MarkupSafe==0.23
 requests==2.8.1
-urllib3==1.23
+urllib3==1.26.5
 Werkzeug==0.11.2