diff --git a/requirements.txt b/requirements.txt
index 2492f3f..879b2d2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ simplegeneric==0.8.1
 six==1.11.0
 traitlets==4.3.2
 typed-ast==1.1.0
-urllib3==1.23
+urllib3==1.26.5
 wcwidth==0.1.7
 Werkzeug==0.14.1
 wrapt==1.10.11