diff --git a/pip-sample/requirements.txt b/pip-sample/requirements.txt
index 680d0816..284f1496 100644
--- a/pip-sample/requirements.txt
+++ b/pip-sample/requirements.txt
@@ -58,7 +58,7 @@ testpath==0.4.1
 tornado==5.1.1
 traitlets==4.3.2
 tweepy==3.6.0
-urllib3==1.23
+urllib3==1.26.19
 virtualenv==16.0.0
 wcwidth==0.1.7
 webencodings==0.5.1