diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index e46d498c..1a6a7965
--- a/requirements.txt
+++ b/requirements.txt
@@ -81,7 +81,7 @@ terminado==0.8.3
 testpath==0.4.4
 tornado==6.0.3
 traitlets==4.3.3
-urllib3==1.25.7
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 Werkzeug==0.16.0