diff --git a/requirements.txt b/requirements.txt
index 6416461..820377b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -98,7 +98,7 @@ tornado==4.5.3
 traitlets==4.3.3
 uritemplate==3.0.1
 uritemplate.py==3.0.2
-urllib3==1.24.3
+urllib3==1.26.5
 wcwidth==0.1.8
 webencodings==0.5.1
 widgetsnbextension==3.5.1