diff --git a/examples/persistence_postgres.ipynb b/examples/persistence_postgres.ipynb
index ea69f33a7..28145c104 100644
--- a/examples/persistence_postgres.ipynb
+++ b/examples/persistence_postgres.ipynb
@@ -259,7 +259,7 @@
     "        return {\n",
     "            \"configurable\": {\n",
     "                \"thread_id\": thread_id,\n",
-    "                \"thread_ts\": checkpoint[\"ts\"],\n",
+    "                \"thread_ts\": checkpoint[\"id\"],\n",
     "            },\n",
     "        }\n",
     "\n",
@@ -646,7 +646,7 @@
    "metadata": {},
    "outputs": [
     {
-     "name": "stdin",
+     "name": "stdout",
      "output_type": "stream",
      "text": [
       "OPENAI_API_KEY:  ········\n"