diff --git a/requirements.txt b/requirements.txt
index 37caaaf..369ae92 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -148,7 +148,7 @@ tornado==5.1.1
 tqdm==4.31.1
 traitlets==4.3.2
 tzlocal==1.5.1
-urllib3==1.25.3
+urllib3==1.25.8
 wcwidth==0.1.7
 webassets==0.12.1
 webencodings==0.5.1