diff --git a/requirements.txt b/requirements.txt
index df7206d..bcfe1ab 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,6 +29,6 @@ simplegeneric==0.8.1
 six==1.11.0
 SQLAlchemy==1.2.11
 traitlets==4.3.2
-urllib3==1.23
+urllib3==1.26.5
 wcwidth==0.1.7
 Werkzeug==0.14.1