diff --git a/lib/spack/docs/requirements.txt b/lib/spack/docs/requirements.txt
index 3b988d18943735..dc6ee4806a6750 100644
--- a/lib/spack/docs/requirements.txt
+++ b/lib/spack/docs/requirements.txt
@@ -4,7 +4,7 @@ sphinx-copybutton==0.5.2
 sphinx_design==0.6.1
 furo==2025.7.19
 python-levenshtein==0.27.1
-docutils==0.21.2
+docutils==0.22.3
 pygments==2.19.2
 urllib3==2.5.0
 pytest==8.4.1