diff --git a/tests/test_mixed_simulator_device.py b/tests/test_mixed_simulator_device.py
index 19a03cf..38de513 100644
--- a/tests/test_mixed_simulator_device.py
+++ b/tests/test_mixed_simulator_device.py
@@ -445,8 +445,7 @@ def test_basis_state_not_at_beginning_error(self, simulator_device_1_wire):
         ):
             simulator_device_1_wire.apply([qml.PauliX(0), qml.BasisState(np.array([0]), wires=[0])])
 
-    @pytest.mark.parametrize("stateprep", (qml.QubitStateVector, qml.StatePrep))
-    def test_qubit_state_vector_not_at_beginning_error(self, simulator_device_1_wire, stateprep):
+    def test_qubit_state_vector_not_at_beginning_error(self, simulator_device_1_wire):
         """Tests that application of StatePrep raises an error if is not
         the first operation."""
 
@@ -454,9 +453,9 @@ def test_qubit_state_vector_not_at_beginning_error(self, simulator_device_1_wire
 
         with pytest.raises(
             qml.DeviceError,
-            match=f"The operation {stateprep.__name__} is only supported at the beginning of a circuit.",
+            match=f"The operation StatePrep is only supported at the beginning of a circuit.",
         ):
-            simulator_device_1_wire.apply([qml.PauliX(0), stateprep(np.array([0, 1]), wires=[0])])
+            simulator_device_1_wire.apply([qml.PauliX(0), qml.StatePrep(np.array([0, 1]), wires=[0])])
 
 
 @pytest.mark.parametrize("shots", [100])
@@ -475,8 +474,7 @@ def test_basis_state_not_analytic_error(self, simulator_device_1_wire):
         ):
             simulator_device_1_wire.apply([qml.BasisState(np.array([0]), wires=[0])])
 
-    @pytest.mark.parametrize("stateprep", (qml.QubitStateVector, qml.StatePrep))
-    def test_qubit_state_vector_not_analytic_error(self, simulator_device_1_wire, stateprep):
+    def test_qubit_state_vector_not_analytic_error(self, simulator_device_1_wire):
         """Tests that application of StatePrep raises an error if the device
         is not in analytic mode."""
 
@@ -486,7 +484,7 @@ def test_qubit_state_vector_not_analytic_error(self, simulator_device_1_wire, st
             qml.DeviceError,
             match="The operations StatePrep and QubitStateVector are only supported in analytic mode.",
         ):
-            simulator_device_1_wire.apply([stateprep(np.array([0, 1]), wires=[0])])
+            simulator_device_1_wire.apply([qml.StatePrep(np.array([0, 1]), wires=[0])])
 
 
 @pytest.mark.parametrize("shots", [None])
diff --git a/tests/test_qsim_device.py b/tests/test_qsim_device.py
index a2977fd..a7483ce 100644
--- a/tests/test_qsim_device.py
+++ b/tests/test_qsim_device.py
@@ -72,7 +72,6 @@ def circuit(x, y, z):
         "op, params",
         [
             (qml.StatePrep, np.array([0, 1])),
-            (qml.QubitStateVector, np.array([0, 1])),
             (qml.BasisState, np.array([1])),
         ],
     )
@@ -108,7 +107,6 @@ def test_adjoint_ops_not_supported(self):
         [
             "StatePrep",
             "BasisState",
-            "QubitStateVector",
             "CRX",
             "CRY",
             "CRZ",
diff --git a/tests/test_qsimh_device.py b/tests/test_qsimh_device.py
index c367f87..f59825b 100644
--- a/tests/test_qsimh_device.py
+++ b/tests/test_qsimh_device.py
@@ -63,7 +63,6 @@ def circuit(x, y, z):
         "op, params",
         [
             (qml.StatePrep, np.array([0, 1])),
-            (qml.QubitStateVector, np.array([0, 1])),
             (qml.BasisState, np.array([1])),
         ],
     )
@@ -98,7 +97,6 @@ def test_adjoint_ops_not_supported(self):
         "gate",
         [
             "StatePrep",
-            "QubitStateVector",
             "BasisState",
             "CRX",
             "CRY",
diff --git a/tests/test_simulator_device.py b/tests/test_simulator_device.py
index eb81411..f9fabb2 100644
--- a/tests/test_simulator_device.py
+++ b/tests/test_simulator_device.py
@@ -471,8 +471,7 @@ def test_basis_state_not_at_beginning_error(self, simulator_device_1_wire):
         ):
             simulator_device_1_wire.apply([qml.PauliX(0), qml.BasisState(np.array([0]), wires=[0])])
 
-    @pytest.mark.parametrize("stateprep", (qml.StatePrep, qml.QubitStateVector))
-    def test_qubit_state_vector_not_at_beginning_error(self, simulator_device_1_wire, stateprep):
+    def test_qubit_state_vector_not_at_beginning_error(self, simulator_device_1_wire):
         """Tests that application of StatePrep raises an error if is not
         the first operation."""
 
@@ -480,9 +479,9 @@ def test_qubit_state_vector_not_at_beginning_error(self, simulator_device_1_wire
 
         with pytest.raises(
             qml.DeviceError,
-            match=f"The operation {stateprep.__name__} is only supported at the beginning of a circuit.",
+            match=f"The operation StatePrep is only supported at the beginning of a circuit.",
         ):
-            simulator_device_1_wire.apply([qml.PauliX(0), stateprep(np.array([0, 1]), wires=[0])])
+            simulator_device_1_wire.apply([qml.PauliX(0), qml.StatePrep(np.array([0, 1]), wires=[0])])
 
 
 @pytest.mark.parametrize("shots", [1000])
@@ -501,8 +500,7 @@ def test_basis_state_not_analytic_error(self, simulator_device_1_wire):
         ):
             simulator_device_1_wire.apply([qml.BasisState(np.array([0]), wires=[0])])
 
-    @pytest.mark.parametrize("stateprep", (qml.QubitStateVector, qml.StatePrep))
-    def test_qubit_state_vector_not_analytic_error(self, simulator_device_1_wire, stateprep):
+    def test_qubit_state_vector_not_analytic_error(self, simulator_device_1_wire):
         """Tests that application of StatePrep raises an error if the device
         is not in analytic mode."""
 
@@ -512,7 +510,7 @@ def test_qubit_state_vector_not_analytic_error(self, simulator_device_1_wire, st
             qml.DeviceError,
             match="The operations StatePrep and QubitStateVector are only supported in analytic mode.",
         ):
-            simulator_device_1_wire.apply([stateprep(np.array([0, 1]), wires=[0])])
+            simulator_device_1_wire.apply([qml.StatePrep(np.array([0, 1]), wires=[0])])
 
 
 @pytest.mark.parametrize("shots", [None])