diff --git a/lib/spack/docs/requirements.txt b/lib/spack/docs/requirements.txt
index df199912d77..f4333b9aaef 100644
--- a/lib/spack/docs/requirements.txt
+++ b/lib/spack/docs/requirements.txt
@@ -5,7 +5,7 @@ sphinx-rtd-theme==1.3.0
 python-levenshtein==0.23.0
 docutils==0.18.1
 pygments==2.16.1
-urllib3==2.0.7
+urllib3==2.1.0
 pytest==7.4.3
 isort==5.12.0
 black==23.11.0