diff --git a/topic/machine-learning/llm-langchain/cratedb_rag_customer_support_langchain.ipynb b/topic/machine-learning/llm-langchain/cratedb_rag_customer_support_langchain.ipynb
index 64dcabdc..c8caf569 100644
--- a/topic/machine-learning/llm-langchain/cratedb_rag_customer_support_langchain.ipynb
+++ b/topic/machine-learning/llm-langchain/cratedb_rag_customer_support_langchain.ipynb
@@ -136,17 +136,17 @@
    "outputs": [],
    "source": [
     "# Define the connection string to running CrateDB instance.\n",
-    "CONNECTION_STRING = os.environ.get(\n",
-    "    \"CRATEDB_CONNECTION_STRING\",\n",
-    "    \"crate://crate@localhost/?schema=openai\",\n",
-    ")\n",
-    "\n",
-    "# Connect to CrateDB Cloud.\n",
     "# CONNECTION_STRING = os.environ.get(\n",
     "#     \"CRATEDB_CONNECTION_STRING\",\n",
-    "#     \"crate://username:password@hostname/?ssl=true&schema=notebook\",\n",
+    "#     \"crate://crate@localhost/?schema=openai\",\n",
     "# )\n",
     "\n",
+    "# Connect to CrateDB Cloud.\n",
+    "CONNECTION_STRING = os.environ.get(\n",
+    "    \"CRATEDB_CONNECTION_STRING\",\n",
+    "    \"crate://username:password@hostname/?ssl=true&schema=notebook\",\n",
+    ")\n",
+    "\n",
     "# Define the store collection to use for this notebook session.\n",
     "COLLECTION_NAME = \"customer_data\""
    ]