diff --git a/lib/spack/docs/requirements.txt b/lib/spack/docs/requirements.txt
index 58877fcfc27d87..a8f853e3cf1a36 100644
--- a/lib/spack/docs/requirements.txt
+++ b/lib/spack/docs/requirements.txt
@@ -5,7 +5,7 @@ sphinx-rtd-theme==2.0.0
 python-levenshtein==0.25.1
 docutils==0.21.2
 pygments==2.18.0
-urllib3==2.2.2
+urllib3==2.2.3
 pytest==8.3.3
 isort==5.13.2
 black==24.8.0