diff --git a/lib/spack/docs/requirements.txt b/lib/spack/docs/requirements.txt
index 37eb9697d4ef1c..667eeffa2e04a4 100644
--- a/lib/spack/docs/requirements.txt
+++ b/lib/spack/docs/requirements.txt
@@ -12,6 +12,6 @@ pygments==2.19.2
 urllib3==2.5.0
 pytest==8.4.2
 isort==7.0.0
-black==25.9.0
+black==25.11.0
 flake8==7.3.0
 mypy==1.18.2