diff --git a/docs/.sphinx/pinned-requirements.txt b/docs/.sphinx/pinned-requirements.txt
index 702d632667..5002d6ecb8 100644
--- a/docs/.sphinx/pinned-requirements.txt
+++ b/docs/.sphinx/pinned-requirements.txt
@@ -31,4 +31,4 @@ sphinxcontrib-jsmath==1.0.1
 sphinxcontrib-qthelp==1.0.3
 sphinxcontrib-serializinghtml==1.1.5
 tornado==6.3.3
-urllib3==1.26.17
+urllib3==1.26.18