diff --git a/backend/requirements.txt b/backend/requirements.txt
index c4eb6f3..d5db0b0 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -7,5 +7,5 @@ idna==2.6
 paho-mqtt==1.3.0
 pytz==2017.2
 requests==2.18.4
-urllib3==1.22
+urllib3==1.26.5
 fiotclient