diff --git a/docker/backend-requirements.txt b/docker/backend-requirements.txt
index 330c339..c47b027 100644
--- a/docker/backend-requirements.txt
+++ b/docker/backend-requirements.txt
@@ -15,7 +15,7 @@ redis==2.10.5
 requests==2.18.3
 six==1.10.0
 tornado==4.5.1
-urllib3==1.22
+urllib3==1.26.5
 vine==1.1.4
 Werkzeug==0.12.2
 WTForms==2.1