diff --git a/requirements.txt b/requirements.txt
index 0c776d7..e19c90f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ requests==2.18.4
 simplegeneric==0.8.1
 six==1.11.0
 traitlets==4.3.2
-urllib3==1.22
+urllib3==1.26.5
 wcwidth==0.1.7
 whitenoise==3.3.1
 wrapt==1.10.11