diff --git a/capitalize_comments.py b/capitalize_comments.py
old mode 100755
new mode 100644
diff --git a/pyproject.toml b/pyproject.toml
index c30a9d0..0f14129 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,8 +24,5 @@ classifiers = [
 [project.scripts]
 capitalize-comments = "capitalize_comments:main"
 
-[tool.black]
+[tool.ruff]
 line-length = 120
-
-[tool.isort]
-profile = "black"