diff --git a/requirements.txt b/requirements.txt
index 9c317e6..5039b98 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -85,7 +85,7 @@ torch==0.4.1
 tornado==5.1.1
 traitlets==4.3.2
 unityagents==0.4.0
-urllib3==1.24.1
+urllib3==1.26.5
 wcwidth==0.1.7
 Werkzeug==0.14.1
 widgetsnbextension==3.4.2