diff --git a/requirements.txt b/requirements.txt
index 5670c83..aee44a4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,5 +39,5 @@ Sphinx==1.6.4
 sphinx-rtd-theme==0.2.4
 sphinxcontrib-websupport==1.0.1
 typing==3.6.2
-urllib3==1.22
+urllib3==2.6.0
 Whoosh==2.7.4