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diff --git a/notebooks/notebook_for_chamber.ipynb b/notebooks/notebook_for_chamber.ipynb
index 89389ad..683e03c 100644
--- a/notebooks/notebook_for_chamber.ipynb
+++ b/notebooks/notebook_for_chamber.ipynb
@@ -41,7 +41,7 @@
         "set -e\n",
         "\n",
         "#---------------------------------------------------#\n",
-        "JULIA_VERSION=\"1.8.2\"\n",
+        "JULIA_VERSION=\"1.8.5\"\n",
         "JULIA_PACKAGES=\"IJulia Chamber\"\n",
         "JULIA_NUM_THREADS=2\n",
         "#---------------------------------------------------#\n",
@@ -371,6 +371,37 @@
         "depth = 8e3\n",
         "dataframe = chamber(composition, end_time, log_volume_km3, InitialConc_H2O, InitialConc_CO2, log_vfr, depth)"
       ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {},
+      "source": [
+        "## Save results to your Google Drive\n",
+        "To download the output files, mount your Google Drive by following these steps:\n",
+        "\n",
+        "1. Change the runtime type to Python.\n",
+        "\n",
+        "    <img src=\"images/instructions_5.png\" height=260/>   <img src=\"images/instructions_6.png\" height=220/>\n",
+        "\n",
+        "2. Run the code cell below.\n",
+        "3. Afterward, you can drag the desired output files into the Drive folder.\n",
+        "\n",
+        "    <img src=\"images/instructions_7.png\" height=200/>\n",
+        "\n",
+        "\n",
+        "[Notice] Remember to change the runtime type back to Julia before running other Julia code cells."
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {},
+      "outputs": [],
+      "source": [
+        "# runtime type: Python\n",
+        "from google.colab import drive\n",
+        "drive.mount('/content/drive')"
+      ]
     }
   ],
   "metadata": {