diff --git a/tour2_constant_bond/2_1_1_PO_observation.ipynb b/tour2_constant_bond/2_1_1_PO_observation.ipynb
index c91347d9ffb1aca51d6bc787685e6b9769d92691..a8a213ce12d1ff344b9d401a7da4318e866ca034 100644
--- a/tour2_constant_bond/2_1_1_PO_observation.ipynb
+++ b/tour2_constant_bond/2_1_1_PO_observation.ipynb
@@ -189,7 +189,7 @@
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-       "model_id": "54c0ab9fb44c4ca791d5f31a423d2f92",
+       "model_id": "cf65fabf58134e579180a61deb4f2ec6",
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@@ -260,7 +260,7 @@
    "name": "python",
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+   "version": "3.8.10"
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diff --git a/tour2_constant_bond/2_2_1_PO_configuration_explorer.ipynb b/tour2_constant_bond/2_2_1_PO_configuration_explorer.ipynb
index 2563bac9b8d347bd4c549b8687eee42151a34a65..389f131810cf2b9349931839bfe9df834d2ab606 100644
--- a/tour2_constant_bond/2_2_1_PO_configuration_explorer.ipynb
+++ b/tour2_constant_bond/2_2_1_PO_configuration_explorer.ipynb
@@ -70,13 +70,13 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [
     {
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       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "735610fd27ee461aad640614c65a260f",
+       "model_id": "2d20c1e845fd4b6e86a1bd7c4c46e909",
        "version_major": 2,
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@@ -129,7 +129,7 @@
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@@ -176,7 +176,7 @@
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        "version_major": 2,
        "version_minor": 0
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@@ -300,7 +300,7 @@
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    "pygments_lexer": "ipython3",
-   "version": "3.8.8"
+   "version": "3.8.10"
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