diff --git a/requirements.txt b/requirements.txt
index 4a246ac7..5de1e299 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,4 +17,4 @@ snowballstemmer==1.2.1
 Sphinx==1.7.6
 sphinx-sitemap==0.3.1
 sphinxcontrib-websupport==1.1.0
-urllib3==1.23
+urllib3==2.5.0