diff --git a/requirements.txt b/requirements.txt
index ffe244e..8b70334 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -53,6 +53,6 @@ six==1.11.0
 sortedcontainers==1.5.9
 tox==2.9.1
 unicorn==1.0.1
-urllib3==1.22
+urllib3==1.26.5
 virtualenv==15.1.0
 wrapt==1.10.11