diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index df82c2f..1753c8a
--- a/requirements.txt
+++ b/requirements.txt
@@ -120,7 +120,7 @@ tornado==5.0.1
 tqdm==4.20.0
 traitlets==4.3.2
 ujson==1.35
-urllib3==1.22
+urllib3==1.26.5
 uvloop==0.9.1
 wcwidth==0.1.7
 webencodings==0.5.1