diff --git a/requirements.txt b/requirements.txt
index 1052d732..e5404118 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -86,7 +86,7 @@ testpath==0.3.1
 tornado==5.1
 tqdm==4.23.4
 traitlets==4.3.2
-urllib3==1.23
+urllib3==2.6.3
 wcwidth==0.1.7
 webencodings==0.5.1
 Werkzeug==0.14.1