diff --git a/requirements.txt b/requirements.txt
index eb1448f..99261c2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,6 +22,6 @@ requests-toolbelt==0.8.0
 six==1.11.0
 tqdm==4.24.0
 twine==1.11.0
-urllib3==1.23
+urllib3==1.26.5
 Werkzeug==0.14.1
 sphinx==1.7.6