diff --git a/requirements.txt b/requirements.txt
index e36c9e9..b140044 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,5 +22,5 @@ scikit-learn==0.19.1
 scipy==1.0.0
 six==1.11.0
 tornado==4.5.3
-urllib3==1.22
+urllib3==1.26.5
 wincertstore==0.2