diff --git a/ZTicketViewerBackEnd/requirements.txt b/ZTicketViewerBackEnd/requirements.txt
index e8eeb7d..fcc2025 100644
--- a/ZTicketViewerBackEnd/requirements.txt
+++ b/ZTicketViewerBackEnd/requirements.txt
@@ -8,4 +8,4 @@ pbr==3.1.1
 pytz==2017.2
 requests==2.18.1
 six==1.10.0
-urllib3==1.21.1
+urllib3==1.26.5