diff --git a/requirements.txt b/requirements.txt
index 4d08879..17edb13 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,6 +25,6 @@ scikit-learn==0.18.1
 scipy==0.19.0
 six==1.8.0
 sklearn==0.0
-urllib3==1.9.1
+urllib3==1.26.5
 Werkzeug==0.12.1
 whitenoise==3.3.0