diff --git a/requirements.txt b/requirements.txt
index fbc0f07..382a274 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -36,7 +36,7 @@ simplegeneric==0.8.1
 simplejson==3.11.1
 six==1.10.0
 traitlets==4.3.2
-urllib3==1.22
+urllib3==1.26.5
 wcwidth==0.1.7
 whitenoise==3.3.0
 wsgiref==0.1.2