diff --git a/pandas/tests/dtypes/test_common.py b/pandas/tests/dtypes/test_common.py
index 466b724f98770..ecf6e0e34141d 100644
--- a/pandas/tests/dtypes/test_common.py
+++ b/pandas/tests/dtypes/test_common.py
@@ -1,3 +1,5 @@
+from typing import List, cast
+
 import numpy as np
 import pytest
 
@@ -325,7 +327,7 @@ def test_is_datetimelike():
 @pytest.mark.parametrize(
     "dtype",
     [pd.Series([1, 2])]
-    + ALL_INT_DTYPES
+    + cast(List[pd.Series], ALL_INT_DTYPES)
     + to_numpy_dtypes(ALL_INT_DTYPES)
     + ALL_EA_INT_DTYPES
     + to_ea_dtypes(ALL_EA_INT_DTYPES),
@@ -353,7 +355,7 @@ def test_is_not_integer_dtype(dtype):
 @pytest.mark.parametrize(
     "dtype",
     [pd.Series([1, 2])]
-    + SIGNED_INT_DTYPES
+    + cast(List[pd.Series], SIGNED_INT_DTYPES)
     + to_numpy_dtypes(SIGNED_INT_DTYPES)
     + SIGNED_EA_INT_DTYPES
     + to_ea_dtypes(SIGNED_EA_INT_DTYPES),
@@ -385,7 +387,7 @@ def test_is_not_signed_integer_dtype(dtype):
 @pytest.mark.parametrize(
     "dtype",
     [pd.Series([1, 2], dtype=np.uint32)]
-    + UNSIGNED_INT_DTYPES
+    + cast(List[pd.Series], UNSIGNED_INT_DTYPES)
     + to_numpy_dtypes(UNSIGNED_INT_DTYPES)
     + UNSIGNED_EA_INT_DTYPES
     + to_ea_dtypes(UNSIGNED_EA_INT_DTYPES),
diff --git a/setup.cfg b/setup.cfg
index ca1ca4a7b5733..aa1963b7c14b8 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -145,9 +145,6 @@ ignore_errors=True
 [mypy-pandas.tests.arrays.test_period]
 ignore_errors=True
 
-[mypy-pandas.tests.dtypes.test_common]
-ignore_errors=True
-
 [mypy-pandas.tests.dtypes.test_inference]
 ignore_errors=True