diff --git a/pandas/core/generic.py b/pandas/core/generic.py
index 582a043a8a78a..97bb19c83a0a8 100644
--- a/pandas/core/generic.py
+++ b/pandas/core/generic.py
@@ -4852,8 +4852,8 @@ def sort_values(
         axis: Axis = ...,
         ascending: bool_t | Sequence[bool_t] = ...,
         inplace: Literal[False] = ...,
-        kind: str = ...,
-        na_position: str = ...,
+        kind: SortKind = ...,
+        na_position: NaPosition = ...,
         ignore_index: bool_t = ...,
         key: ValueKeyFunc = ...,
     ) -> Self:
@@ -4866,8 +4866,8 @@ def sort_values(
         axis: Axis = ...,
         ascending: bool_t | Sequence[bool_t] = ...,
         inplace: Literal[True],
-        kind: str = ...,
-        na_position: str = ...,
+        kind: SortKind = ...,
+        na_position: NaPosition = ...,
         ignore_index: bool_t = ...,
         key: ValueKeyFunc = ...,
     ) -> None:
@@ -4880,8 +4880,8 @@ def sort_values(
         axis: Axis = ...,
         ascending: bool_t | Sequence[bool_t] = ...,
         inplace: bool_t = ...,
-        kind: str = ...,
-        na_position: str = ...,
+        kind: SortKind = ...,
+        na_position: NaPosition = ...,
         ignore_index: bool_t = ...,
         key: ValueKeyFunc = ...,
     ) -> Self | None:
@@ -4893,8 +4893,8 @@ def sort_values(
         axis: Axis = 0,
         ascending: bool_t | Sequence[bool_t] = True,
         inplace: bool_t = False,
-        kind: str = "quicksort",
-        na_position: str = "last",
+        kind: SortKind = "quicksort",
+        na_position: NaPosition = "last",
         ignore_index: bool_t = False,
         key: ValueKeyFunc = None,
     ) -> Self | None:
diff --git a/pandas/core/series.py b/pandas/core/series.py
index adb16c2f2dd55..8d7354f5f4f0c 100644
--- a/pandas/core/series.py
+++ b/pandas/core/series.py
@@ -3334,8 +3334,8 @@ def sort_values(
         axis: Axis = ...,
         ascending: bool | int | Sequence[bool] | Sequence[int] = ...,
         inplace: Literal[False] = ...,
-        kind: str = ...,
-        na_position: str = ...,
+        kind: SortKind = ...,
+        na_position: NaPosition = ...,
         ignore_index: bool = ...,
         key: ValueKeyFunc = ...,
     ) -> Series:
@@ -3348,8 +3348,8 @@ def sort_values(
         axis: Axis = ...,
         ascending: bool | int | Sequence[bool] | Sequence[int] = ...,
         inplace: Literal[True],
-        kind: str = ...,
-        na_position: str = ...,
+        kind: SortKind = ...,
+        na_position: NaPosition = ...,
         ignore_index: bool = ...,
         key: ValueKeyFunc = ...,
     ) -> None:
@@ -3361,8 +3361,8 @@ def sort_values(
         axis: Axis = 0,
         ascending: bool | int | Sequence[bool] | Sequence[int] = True,
         inplace: bool = False,
-        kind: str = "quicksort",
-        na_position: str = "last",
+        kind: SortKind = "quicksort",
+        na_position: NaPosition = "last",
         ignore_index: bool = False,
         key: ValueKeyFunc = None,
     ) -> Series | None: