diff --git a/lib/spack/docs/requirements.txt b/lib/spack/docs/requirements.txt
index 963d83d0b8da92..58ff0ec6fc3f8c 100644
--- a/lib/spack/docs/requirements.txt
+++ b/lib/spack/docs/requirements.txt
@@ -11,7 +11,7 @@ docutils==0.21.2
 pygments==2.19.2
 urllib3==2.5.0
 pytest==8.4.2
-isort==6.0.1
+isort==7.0.0
 black==25.9.0
 flake8==7.3.0
 mypy==1.18.2