diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c0c79f1..4a809e8 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -48,6 +48,6 @@ jobs:
       - name: Install ruff
         run: python -m pip install ruff
       - name: Run ruff check
-        run: ruff check --select F,E,W,I,UP,COM --target-version py310 .
+        run: ruff check --select F,E,W,I,UP,A,COM --target-version py310 .
       - name: Run ruff format
         run: ruff format --diff .
diff --git a/docs/conf.py b/docs/conf.py
index 8cbe8b7..a4025aa 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -28,7 +28,7 @@
 
 # General information about the project.
 project = "Python-Markups"
-copyright = "2024, Dmitry Shachnev"
+copyright = "2024, Dmitry Shachnev"  # noqa: A001
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
diff --git a/markup2html.py b/markup2html.py
index d24e588..d90c0e1 100755
--- a/markup2html.py
+++ b/markup2html.py
@@ -8,8 +8,8 @@
 
 def export_file(args: argparse.Namespace) -> None:
     markup = markups.get_markup_for_file_name(args.input_file)
-    with open(args.input_file) as input:
-        text = input.read()
+    with open(args.input_file) as fp:
+        text = fp.read()
     if not markup:
         sys.exit("Markup not available.")
     converted = markup.convert(text)