diff --git a/lib/spack/docs/requirements.txt b/lib/spack/docs/requirements.txt
index a115051ce569ea..4542ec7eff1880 100644
--- a/lib/spack/docs/requirements.txt
+++ b/lib/spack/docs/requirements.txt
@@ -3,7 +3,7 @@ sphinxcontrib-programoutput==0.17
 sphinx_design==0.4.1
 sphinx-rtd-theme==1.2.2
 python-levenshtein==0.21.1
-docutils==0.18.1
+docutils==0.20.1
 pygments==2.15.1
 urllib3==2.0.3
 pytest==7.4.0