diff --git a/requirements.txt b/requirements.txt
index 3c5a58a..8aa6e0e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -40,6 +40,6 @@ six==1.11.0
 statsmodels==0.9.0
 tornado==5.1.1
 traitlets==4.3.2
-urllib3==1.23
+urllib3==1.26.5
 wcwidth==0.1.7
 wheel==0.31.1