diff --git a/requirements.txt b/requirements.txt
index 8a9499b..a277d9e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,4 +16,4 @@ Sphinx==1.6.3
 sphinx-rtd-theme==0.2.4
 sphinxcontrib-websupport==1.0.1
 typing==3.6.2
-urllib3==1.22
+urllib3==1.26.5