diff --git a/requirements-py27.txt b/requirements-py27.txt
index 4c1700a..6e1b2be 100644
--- a/requirements-py27.txt
+++ b/requirements-py27.txt
@@ -66,7 +66,7 @@ tornado==5.1.1
 traitlets==4.3.3
 transformations==2019.4.22
 typing==3.10.0.0
-urllib3==1.26.16
+urllib3==1.26.17
 wcwidth==0.2.6
 webencodings==0.5.1
 zipp==1.2.0