diff --git a/docs/source/conf.py b/docs/source/conf.py
index 73110f24..d4a72b27 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -1,4 +1,5 @@
 """Sphinx configuration file."""
+
 from __future__ import annotations
 
 import warnings
diff --git a/src/mqt/qcec/__init__.py b/src/mqt/qcec/__init__.py
index 1db4ca03..8ef93e78 100644
--- a/src/mqt/qcec/__init__.py
+++ b/src/mqt/qcec/__init__.py
@@ -3,6 +3,7 @@
 This file is part of the MQT QCEC library released under the MIT license.
 See README.md or go to https://github.com/cda-tum/qcec for more information.
 """
+
 from __future__ import annotations
 
 from ._version import version as __version__
diff --git a/src/mqt/qcec/pyqcec/__init__.pyi b/src/mqt/qcec/pyqcec/__init__.pyi
index f57d0cd9..79c3486d 100644
--- a/src/mqt/qcec/pyqcec/__init__.pyi
+++ b/src/mqt/qcec/pyqcec/__init__.pyi
@@ -19,7 +19,7 @@ class ApplicationScheme:
     def __eq__(self, other: object) -> bool: ...
     def __getstate__(self) -> int: ...
     def __hash__(self) -> int: ...
-    def __index__(self) -> int: ...  # noqa: PLW3201
+    def __index__(self) -> int: ...
     def __int__(self) -> int: ...
     def __ne__(self, other: object) -> bool: ...
     def __setstate__(self, state: int) -> None: ...
@@ -150,7 +150,7 @@ class EquivalenceCriterion:
     def __eq__(self, other: object) -> bool: ...
     def __getstate__(self) -> int: ...
     def __hash__(self) -> int: ...
-    def __index__(self) -> int: ...  # noqa: PLW3201
+    def __index__(self) -> int: ...
     def __int__(self) -> int: ...
     def __ne__(self, other: object) -> bool: ...
     def __setstate__(self, state: int) -> None: ...
@@ -171,7 +171,7 @@ class StateType:
     def __eq__(self, other: object) -> bool: ...
     def __getstate__(self) -> int: ...
     def __hash__(self) -> int: ...
-    def __index__(self) -> int: ...  # noqa: PLW3201
+    def __index__(self) -> int: ...
     def __int__(self) -> int: ...
     def __ne__(self, other: object) -> bool: ...
     def __setstate__(self, state: int) -> None: ...
diff --git a/src/mqt/qcec/types.py b/src/mqt/qcec/types.py
index 0ff60201..42245122 100644
--- a/src/mqt/qcec/types.py
+++ b/src/mqt/qcec/types.py
@@ -1,4 +1,5 @@
 """Types for the QCEC module."""
+
 from __future__ import annotations
 
 from typing import Literal