diff --git a/lib/spack/docs/requirements.txt b/lib/spack/docs/requirements.txt
index 5a46113dffa2b5..bc598104b13cce 100644
--- a/lib/spack/docs/requirements.txt
+++ b/lib/spack/docs/requirements.txt
@@ -8,6 +8,6 @@ pygments==2.19.1
 urllib3==2.3.0
 pytest==8.3.4
 isort==5.13.2
-black==24.10.0
+black==25.1.0
 flake8==7.1.1
 mypy==1.11.1