diff --git a/test/unit/test_data_serialization.py b/test/unit/test_data_serialization.py
index 673155ffd..f4845e55e 100644
--- a/test/unit/test_data_serialization.py
+++ b/test/unit/test_data_serialization.py
@@ -24,12 +24,10 @@
 from qiskit.circuit import Parameter, QuantumCircuit
 from qiskit.test.reference_circuits import ReferenceCircuits
 from qiskit.circuit.library import EfficientSU2, CXGate, PhaseGate, U2Gate
-
 from qiskit.providers.fake_provider import FakeNairobi
 from qiskit.quantum_info import SparsePauliOp, Pauli, Statevector
 from qiskit.result import Result
 from qiskit_aer.noise import NoiseModel
-
 from qiskit_ibm_runtime.utils import RuntimeEncoder, RuntimeDecoder
 from .mock.fake_runtime_client import CustomResultRuntimeJob
 from .mock.fake_runtime_service import FakeRuntimeService
@@ -101,7 +99,7 @@ def test_coder_operators(self):
             warnings.filterwarnings(
                 "ignore", category=DeprecationWarning, module=r"qiskit\.opflow\."
             )
-            from qiskit.opflow import PauliSumOp # pylint: disable=import-outside-toplevel
+            from qiskit.opflow import PauliSumOp  # pylint: disable=import-outside-toplevel
 
         # catch warnings triggered by opflow use
         with warnings.catch_warnings(record=True) as w_log: