diff --git a/aperisolve/__init__.py b/aperisolve/__init__.py
index 6659e63..2d22b7f 100644
--- a/aperisolve/__init__.py
+++ b/aperisolve/__init__.py
@@ -1,3 +1,5 @@
+"""Main Aperi'Solve module"""
+
 # flake8: noqa: E203,E501,W503
 # pylint: disable=C0413,W0718,R0903,R0801
 # mypy: disable-error-code=unused-awaitable
diff --git a/aperisolve/app.py b/aperisolve/app.py
index 0927ce0..db90c1f 100644
--- a/aperisolve/app.py
+++ b/aperisolve/app.py
@@ -1,5 +1,5 @@
 # flake8: noqa: E203,E501,W503
-# pylint: disable=C0413,W0718,R0903,R0801
+# pylint: disable=C0413,W0718,R0903,R0801,R0915
 # mypy: disable-error-code=unused-awaitable
 """Aperi'Solve Flask application."""
 
@@ -264,6 +264,7 @@ def create_app() -> Flask:
 
     return app
 
+
 if __name__ == "__main__":
     my_app = create_app()
     debug_mode = os.environ.get("FLASK_DEBUG", "0") == "1"
diff --git a/aperisolve/models.py b/aperisolve/models.py
index 66b2330..4af9cb3 100644
--- a/aperisolve/models.py
+++ b/aperisolve/models.py
@@ -160,6 +160,7 @@ def fill_ihdr_db() -> None:
         print(f"Error filling IHDR table: {e}")
         db.session.rollback()
 
+
 def cleanup_old_entries() -> None:
     """
     Clean up old and incomplete entries from the database and file system.