diff --git a/py-polars/tests/unit/operations/test_map.py b/py-polars/tests/unit/operations/test_map.py
index 8faaf784d10e4..89f9e3fe673c3 100644
--- a/py-polars/tests/unit/operations/test_map.py
+++ b/py-polars/tests/unit/operations/test_map.py
@@ -414,3 +414,10 @@ def test_map_elements_on_empty_col_10639() -> None:
         "B": [],
         "Foo": [],
     }
+
+
+def test_apply_deprecated() -> None:
+    with pytest.deprecated_call():
+        pl.col("a").apply(lambda x: x + 1)
+    with pytest.deprecated_call():
+        pl.Series([1, 2, 3]).apply(lambda x: x + 1)