diff --git a/src/netius/adapters/memory.pyi b/src/netius/adapters/memory.pyi
index 184f59b2..f2678d7d 100644
--- a/src/netius/adapters/memory.pyi
+++ b/src/netius/adapters/memory.pyi
@@ -1,8 +1,8 @@
-from typing import Any, BinaryIO, Callable
+from typing import Any, BinaryIO, Callable, Mapping
 
 from netius import BaseAdapter
 
 class MemoryAdapter(BaseAdapter):
     def __init__(self): ...
-    def _ensure(self, owner: str) -> dict[str, Any]: ...
+    def _ensure(self, owner: str) -> Mapping[str, Any]: ...
     def _build_close(self, file: BinaryIO, key: str) -> Callable[[], None]: ...
diff --git a/src/netius/auth/base.pyi b/src/netius/auth/base.pyi
index 2af5c2ba..d9d8133b 100644
--- a/src/netius/auth/base.pyi
+++ b/src/netius/auth/base.pyi
@@ -1,4 +1,4 @@
-from typing import Any, Literal, NoReturn, PathLike
+from typing import Any, Literal, Mapping, NoReturn, PathLike
 
 HashType = Literal["plain", "md5", "sha1", "sha256", "sha512"]
 
@@ -7,7 +7,7 @@ class Auth:
     @classmethod
     def auth(cls, *args, **kwargs) -> bool: ...
     @classmethod
-    def meta(cls, *args, **kwargs) -> dict[str, Any]: ...
+    def meta(cls, *args, **kwargs) -> Mapping[str, Any]: ...
     @classmethod
     def auth_assert(cls, *args, **kwargs) -> NoReturn: ...
     @classmethod
diff --git a/src/netius/auth/memory.pyi b/src/netius/auth/memory.pyi
index 6233f85f..3ff73f09 100644
--- a/src/netius/auth/memory.pyi
+++ b/src/netius/auth/memory.pyi
@@ -1,25 +1,23 @@
-from typing import Any
+from typing import Any, Mapping
 
 from netius import Auth
 
 class MemoryAuth(Auth):
-    def __init__(
-        self, registry: dict[str, Any] | None = ..., *args, **kwargs
-    ): ...
+    def __init__(self, registry: Mapping[str, Any] | None = ..., *args, **kwargs): ...
     @classmethod
     def auth(
         cls,
         username: str,
         password: str,
-        registry: dict[str, Any] | None = ...,
+        registry: Mapping[str, Any] | None = ...,
         *args,
         **kwargs
     ) -> bool: ...
     @classmethod
     def meta(
-        cls, username: str, registry: dict[str, Any] | None = ..., *args, **kwargs
-    ) -> dict[str, Any]: ...
+        cls, username: str, registry: Mapping[str, Any] | None = ..., *args, **kwargs
+    ) -> Mapping[str, Any]: ...
     @classmethod
-    def get_registry(cls) -> dict[str, Any]: ...
+    def get_registry(cls) -> Mapping[str, Any]: ...
     @classmethod
-    def load_registry(cls) -> dict[str, Any]: ...
+    def load_registry(cls) -> Mapping[str, Any]: ...
diff --git a/src/netius/auth/passwd.pyi b/src/netius/auth/passwd.pyi
index 6aa3ebc0..ccfff7a9 100644
--- a/src/netius/auth/passwd.pyi
+++ b/src/netius/auth/passwd.pyi
@@ -1,4 +1,4 @@
-from typing import PathLike
+from typing import Mapping, PathLike
 
 from netius import Auth
 
@@ -9,5 +9,7 @@ class PasswdAuth(Auth):
         cls, username: str, password: str, path: str = ..., *args, **kwargs
     ) -> bool: ...
     @classmethod
-    def get_passwd(cls, path: PathLike[str], cache: bool = ...) -> dict[str, str]: ...
+    def get_passwd(
+        cls, path: PathLike[str], cache: bool = ...
+    ) -> Mapping[str, str]: ...
     def auth_i(self, username: str, password: str, *args, **kwargs) -> bool: ...