diff --git a/requirements.txt b/requirements.txt
index b4d4e06..be7ec5c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -50,7 +50,7 @@ terminado==0.8.2
 testpath==0.4.2
 tornado==6.0.3
 traitlets==4.3.2
-urllib3==1.25.5
+urllib3==1.26.5
 virtualenv==16.7.5
 virtualenv-clone==0.5.3
 wcwidth==0.1.7