diff --git a/lib/spack/docs/requirements.txt b/lib/spack/docs/requirements.txt
index ab1c80a791d..d2c2d18314b 100644
--- a/lib/spack/docs/requirements.txt
+++ b/lib/spack/docs/requirements.txt
@@ -3,7 +3,7 @@ sphinxcontrib-programoutput==0.17
 sphinx_design==0.5.0
 sphinx-rtd-theme==2.0.0
 python-levenshtein==0.23.0
-docutils==0.18.1
+docutils==0.20.1
 pygments==2.17.2
 urllib3==2.1.0
 pytest==7.4.3