diff --git a/requirements.txt b/requirements.txt
index d2f8aee..cca6691 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ MarkupSafe==1.1.1
 pytz==2018.9
 requests==2.21.0
 six==1.12.0
-urllib3==1.24.2
+urllib3==2.5.0
 visitor==0.1.3
 Werkzeug==0.15.5
 WTForms==2.2.1