diff --git a/tests/unit/conservation_rules/test_c_parity.py b/tests/unit/conservation_rules/test_c_parity.py
index 3fec0df7..df261a77 100644
--- a/tests/unit/conservation_rules/test_c_parity.py
+++ b/tests/unit/conservation_rules/test_c_parity.py
@@ -84,9 +84,7 @@ def test_c_parity_multiparticle_boson(rule_input, expected):
             ),
             (s_magnitude + l_magnitude) % 2 == abs(c_parity - 1) / 2,
         )
-        for c_parity, s_magnitude, l_magnitude in product(
-            [-1, 1], range(5), range(5)
-        )
+        for c_parity, s_magnitude, l_magnitude in product([-1, 1], range(5), range(5))
     ],
 )
 def test_c_parity_multiparticle_fermion(rule_input, expected):
diff --git a/tests/unit/conservation_rules/test_parity_conservation.py b/tests/unit/conservation_rules/test_parity_conservation.py
index 3031accd..1463c9b8 100644
--- a/tests/unit/conservation_rules/test_parity_conservation.py
+++ b/tests/unit/conservation_rules/test_parity_conservation.py
@@ -24,9 +24,7 @@
             NodeQuantumNumbers.l_magnitude(l_magnitude),
             parity_in == parity_out1 * (-1) ** (l_magnitude),
         )
-        for parity_in, parity_out1, l_magnitude in product(
-            [-1, 1], [-1, 1], range(5)
-        )
+        for parity_in, parity_out1, l_magnitude in product([-1, 1], [-1, 1], range(5))
     ],
 )
 def test_parity_conservation(in_parities, out_parities, l_magnitude, expected):