diff --git a/dynamic_programming/matrix_chain_multiplication.py b/dynamic_programming/matrix_chain_multiplication.py
index 4c0c771f9092..9d7877a36bfb 100644
--- a/dynamic_programming/matrix_chain_multiplication.py
+++ b/dynamic_programming/matrix_chain_multiplication.py
@@ -45,7 +45,7 @@
     ``26000``
 """
 
-from collections.abc import Iterator
+from collections.abc import Generator
 from contextlib import contextmanager
 from functools import cache
 from sys import maxsize
@@ -128,7 +128,7 @@ def a(i: int, j: int) -> int:
 
 
 @contextmanager
-def elapsed_time(msg: str) -> Iterator:
+def elapsed_time(msg: str) -> Generator[None]:
     # print(f"Starting: {msg}")
     from time import perf_counter_ns
 
diff --git a/pyproject.toml b/pyproject.toml
index 52bd60b9d3aa..932f64f2e00a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -317,7 +317,6 @@ skip = """\
 # free-threaded 3.15t test venv would otherwise leave several stubs unresolved.
 environment.python-version = "3.15"
 rules.call-non-callable = "ignore"
-rules.deprecated = "ignore"
 rules.invalid-argument-type = "ignore"
 rules.invalid-return-type = "ignore"
 rules.no-matching-overload = "ignore"