diff --git a/babelizer/_utils.py b/babelizer/_utils.py
index 7b18b67..af3d98e 100644
--- a/babelizer/_utils.py
+++ b/babelizer/_utils.py
@@ -72,7 +72,7 @@ def get_setup_py_version() -> str | None:
 
 
 @contextmanager
-def save_files(files: Iterable[str]) -> Generator[dict[str, str], None, None]:
+def save_files(files: Iterable[str]) -> Generator[dict[str, str]]:
     """Generate repository files through a context.
 
     Parameters
@@ -96,7 +96,7 @@ def save_files(files: Iterable[str]) -> Generator[dict[str, str], None, None]:
 
 
 @contextmanager
-def as_cwd(path: str) -> Generator[None, None, None]:
+def as_cwd(path: str) -> Generator[None]:
     """Change directory context.
 
     Parameters
diff --git a/babelizer/config.py b/babelizer/config.py
index 1e466be..97b2589 100644
--- a/babelizer/config.py
+++ b/babelizer/config.py
@@ -84,7 +84,7 @@ def __init__(
     def __getitem__(self, key: str) -> dict[str, Any]:
         return self._meta[key]
 
-    def __iter__(self) -> Generator[str, None, None]:
+    def __iter__(self) -> Generator[str]:
         yield from self._meta
 
     def __len__(self) -> int: