diff --git a/pyproject.toml b/pyproject.toml
index 9c2a33b..99182cc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -48,6 +48,9 @@ changelog = "https://github.com/k4yt3x/video2x/releases"
 [project.scripts]
 video2x = "video2x:main"
 
+[tool.isort]
+profile = "black"
+
 [tool.pdm]
 version = { from = "video2x/__init__.py" }
 
diff --git a/video2x/__init__.py b/video2x/__init__.py
index a7b768b..86a0b32 100755
--- a/video2x/__init__.py
+++ b/video2x/__init__.py
@@ -26,6 +26,9 @@ Last Modified: April 1, 2022
 # prevent setup.cfg from producing import errors
 __version__ = "5.0.0-beta5"
 
+# flake8: noqa
+# let flake8 ignore this file to avoid F401 warnings
+# generated by the following lines
 from .interpolator import Interpolator
 from .upscaler import Upscaler
 from .video2x import Video2X, main