diff --git a/requirements.txt b/requirements.txt
index a352ec9..c2877a8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ pycurl==7.19.3
 pyserial==2.6
 requests==2.13.0
 requests-oauthlib==0.7.0
-urllib3==1.7.1
+urllib3==1.26.5
 virtualenv==15.1.0
 wheel==0.24.0
 wsgiref==0.1.2