diff --git a/doc/sphinx/requirements.txt b/doc/sphinx/requirements.txt
index 5baec4d93e3..f2890c3a7bb 100644
--- a/doc/sphinx/requirements.txt
+++ b/doc/sphinx/requirements.txt
@@ -22,4 +22,4 @@ sphinxcontrib-htmlhelp==2.0.0
 sphinxcontrib-jsmath==1.0.1
 sphinxcontrib-qthelp==1.0.3
 sphinxcontrib-serializinghtml==1.1.5
-urllib3==1.26.9
+urllib3==1.26.18