diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 76a999c..30d2dc3
--- a/requirements.txt
+++ b/requirements.txt
@@ -60,7 +60,7 @@ toolz==0.9.0
 tqdm==4.19.5
 traitlets==4.3.2
 ujson==1.35
-urllib3==1.22
+urllib3==1.26.5
 uWSGI==2.0.15
 wcwidth==0.1.7
 Werkzeug==0.13