diff --git a/python/pyspark/pandas/generic.py b/python/pyspark/pandas/generic.py
index cdd8f67213f1b..c26b516c59be2 100644
--- a/python/pyspark/pandas/generic.py
+++ b/python/pyspark/pandas/generic.py
@@ -573,7 +573,7 @@ def to_numpy(self) -> np.ndarray:
         >>> ps.Series(['a', 'b', 'a']).to_numpy()
         array(['a', 'b', 'a'], dtype=object)
         """
-        return self.to_pandas().values
+        return cast(np.ndarray, self._to_pandas().values)
 
     @property
     def values(self) -> np.ndarray: