diff --git a/requirements.txt b/requirements.txt
index 57927fb..0d3c185 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -61,7 +61,7 @@ tornado==5.1.1
 tqdm==4.28.1
 traitlets==4.3.2
 ujson==1.35
-urllib3==1.24
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 websockets==6.0