diff --git a/lib/spack/docs/requirements.txt b/lib/spack/docs/requirements.txt
index b61d7a8b5b4..d57c00e6c8b 100644
--- a/lib/spack/docs/requirements.txt
+++ b/lib/spack/docs/requirements.txt
@@ -4,7 +4,7 @@ sphinx_design==0.5.0
 sphinx-rtd-theme==2.0.0
 python-levenshtein==0.25.1
 docutils==0.20.1
-pygments==2.17.2
+pygments==2.18.0
 urllib3==2.2.1
 pytest==8.2.0
 isort==5.13.2