diff --git a/requirements.txt b/requirements.txt
index b6e44c6..bd04d84 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,5 +27,5 @@ sphinx-rtd-theme==0.4.2
 sphinxcontrib-websupport==1.1.0
 tornado==4.4.2
 typing==3.6.6
-urllib3==1.24.1
+urllib3==1.26.5
 watchdog==0.8.3