diff --git a/lib/spack/docs/requirements.txt b/lib/spack/docs/requirements.txt
index 8fb5b70ac9b..18e2a26f13f 100644
--- a/lib/spack/docs/requirements.txt
+++ b/lib/spack/docs/requirements.txt
@@ -9,5 +9,5 @@ urllib3==2.1.0
 pytest==7.4.4
 isort==5.13.2
 black==23.12.1
-flake8==6.1.0
+flake8==7.0.0
 mypy==1.8.0