diff --git a/demonstrations_v2/tutorial_iqp_circuit_optimization_jax/demo.py b/demonstrations_v2/tutorial_iqp_circuit_optimization_jax/demo.py
index 2ad0531a0e..31c4a11845 100644
--- a/demonstrations_v2/tutorial_iqp_circuit_optimization_jax/demo.py
+++ b/demonstrations_v2/tutorial_iqp_circuit_optimization_jax/demo.py
@@ -156,7 +156,7 @@ def penn_iqp_circuit(params: np.ndarray, gates: list, op: np.ndarray, n_qubits:
     Returns:
         qp.measurements.ExpectationMP: PennyLane circuit with an expectation value.
     """
-    qp.IQP(weights=params, num_wires=n_qubits, pattern=gates)
+    qp.IQP(weights=params, wires=list(range(n_qubits)), pattern=gates)
     obs = penn_obs(op)
     return qp.expval(obs)
 
diff --git a/demonstrations_v2/tutorial_iqp_circuit_optimization_jax/metadata.json b/demonstrations_v2/tutorial_iqp_circuit_optimization_jax/metadata.json
index 1178b115a4..fa80a93cce 100644
--- a/demonstrations_v2/tutorial_iqp_circuit_optimization_jax/metadata.json
+++ b/demonstrations_v2/tutorial_iqp_circuit_optimization_jax/metadata.json
@@ -11,7 +11,7 @@
     "executable_stable": true,
     "executable_latest": true,
     "dateOfPublication": "2025-02-14T09:00:00+00:00",
-    "dateOfLastModification": "2026-05-28T00:00:00+00:00",
+    "dateOfLastModification": "2026-06-10T00:00:00+00:00",
     "categories": [
         "Optimization",
         "Algorithms"