diff --git a/stubs/annoy/annoy/__init__.pyi b/stubs/annoy/annoy/__init__.pyi
index aa39233a7..74d9ad6e0 100644
--- a/stubs/annoy/annoy/__init__.pyi
+++ b/stubs/annoy/annoy/__init__.pyi
@@ -1,5 +1,8 @@
-from typing import Sequence, overload
-from typing_extensions import Literal
+from typing import Sized, overload
+from typing_extensions import Literal, Protocol
+
+class _Vector(Protocol, Sized):
+    def __getitem__(self, i: int) -> float: ...
 
 class AnnoyIndex:
     f: int
@@ -18,18 +21,18 @@ class AnnoyIndex:
     ) -> tuple[list[int], list[float]]: ...
     @overload
     def get_nns_by_vector(
-        self, vector: Sequence[float], n: int, search_k: int = ..., include_distances: Literal[False] = ...
+        self, vector: _Vector, n: int, search_k: int = ..., include_distances: Literal[False] = ...
     ) -> list[int]: ...
     @overload
     def get_nns_by_vector(
-        self, vector: Sequence[float], n: int, search_k: int, include_distances: Literal[True]
+        self, vector: _Vector, n: int, search_k: int, include_distances: Literal[True]
     ) -> tuple[list[int], list[float]]: ...
     @overload
     def get_nns_by_vector(
-        self, vector: Sequence[float], n: int, search_k: int = ..., *, include_distances: Literal[True]
+        self, vector: _Vector, n: int, search_k: int = ..., *, include_distances: Literal[True]
     ) -> tuple[list[int], list[float]]: ...
     def get_item_vector(self, __i: int) -> list[float]: ...
-    def add_item(self, i: int, vector: Sequence[float]) -> None: ...
+    def add_item(self, i: int, vector: _Vector) -> None: ...
     def on_disk_build(self, fn: str) -> Literal[True]: ...
     def build(self, n_trees: int, n_jobs: int = ...) -> Literal[True]: ...
     def unbuild(self) -> Literal[True]: ...