diff --git a/src/modopt/opt/linear/wavelet.py b/src/modopt/opt/linear/wavelet.py
index ae92efa7..ff434287 100644
--- a/src/modopt/opt/linear/wavelet.py
+++ b/src/modopt/opt/linear/wavelet.py
@@ -281,7 +281,7 @@ def _adj_op(self, coeffs):
 class TorchWaveletTransform:
     """Wavelet transform using pytorch."""
 
-    wavedec3_keys = ["aad", "ada", "add", "daa", "dad", "dda", "ddd"]
+    wavedec3_keys = ("aad", "ada", "add", "daa", "dad", "dda", "ddd")
 
     def __init__(
         self,
diff --git a/tests/test_base.py b/tests/test_base.py
index 298253d6..62e09095 100644
--- a/tests/test_base.py
+++ b/tests/test_base.py
@@ -149,7 +149,7 @@ def test_matrix2cube(self):
 class TestType:
     """Test for type module."""
 
-    data_list = list(range(5))
+    data_list = list(range(5))  # noqa: RUF012
     data_int = np.arange(5)
     data_flt = np.arange(5).astype(float)