diff --git a/requirements.txt b/requirements.txt
index 06eed1b..4f66f97 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -71,7 +71,7 @@ tqdm==4.23.4
 traitlets==4.3.2
 twine==1.11.0
 ujson==1.35
-urllib3==1.24.2
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 widgetsnbextension==3.4.0