diff --git a/requirements.txt b/requirements.txt
index 7d96359..4b7d630 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -119,7 +119,7 @@ tornado==6.0.4
 tqdm==4.43.0
 traitlets==4.3.3
 ujson==1.35
-urllib3==1.23
+urllib3==1.26.5
 virtualenv==16.0.0
 wcwidth==0.1.8
 webencodings==0.5.1