diff --git a/w_okada's_Voice_Changer_version_2_x.ipynb b/w_okada's_Voice_Changer_version_2_x.ipynb
index e6bfe8d3..ab6779a3 100644
--- a/w_okada's_Voice_Changer_version_2_x.ipynb
+++ b/w_okada's_Voice_Changer_version_2_x.ipynb
@@ -52,12 +52,40 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 3,
       "metadata": {
         "id": "W2GYWTHWmRIY",
-        "cellView": "form"
+        "cellView": "form",
+        "outputId": "ab23f187-546e-4156-813d-12e2f178d23a",
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        }
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "metadata": {
+            "tags": null
+          },
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "GPU is available\n",
+            "GPU Name: Tesla T4\n",
+            "Welcome to ColabMod\n",
+            "Downloading the latest vcclient... \n",
+            "  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current\n",
+            "                                 Dload  Upload   Total   Spent    Left  Speed\n",
+            "100  1163  100  1163    0     0   2654      0 --:--:-- --:--:-- --:--:--  2649\n",
+            "Warning: Failed to create the file /content/vcclient_latest_for_colab: Text \n",
+            "Warning: file busy\n",
+            "  0 2965M    0 15848    0     0  16360      0 52:47:53 --:--:-- 52:47:53 16360\n",
+            "curl: (23) Failure writing output to destination\n",
+            "Download is done.\n",
+            "/content\n",
+            "Installing modules... Install is done.\n"
+          ]
+        }
+      ],
       "source": [
         "#=================Updated=================\n",
         "# @title **[1]** Clone repository and install dependencies\n",
@@ -196,14 +224,19 @@
         "# @title **[2]** Start server\n",
         "# @markdown This cell will start the server, the first time that you run it will download the models, so it can take a while (2~4 minutes)\n",
         "\n",
+        "# @markdown If you want to use ngrok, please input your token in the option section below. If you encounter a 403 error with the colab proxy, using ngrok can sometimes help to work around it.\n",
+        "# @markdown https://dashboard.ngrok.com/\n",
+        "\n",
         "\n",
         "# @markdown ### Options:\n",
         "ClearConsole = True  # @param {type:\"boolean\"}\n",
         "Play_Notification = True  # @param {type:\"boolean\"}\n",
+        "NgrokToken = \"\"  # @param {type:\"string\"}\n",
         "\n",
         "PORT=8003\n",
+        "NGROK_URL_FILE = \"ngrok_url.txt\"\n",
         "\n",
-        "LOG_FILE = f\"/content/LOG_FILE_{PORT}\"\n",
+        "LOG_FILE = f\"/content/LOG_FILE_{PORT}.log\"\n",
         "\n",
         "from IPython.display import Audio, display\n",
         "def play_notification_sound(url):\n",
@@ -212,10 +245,14 @@
         "from google.colab.output import eval_js\n",
         "\n",
         "\n",
+        "\n",
+        "\n",
         "if mode == \"elf\":\n",
         "  # !LD_LIBRARY_PATH=/usr/lib64-nvidia:/usr/lib/x86_64-linux-gnu ./vcclient_latest_for_colab cui --port {PORT} --no_cui true &\n",
-        "\n",
-        "  get_ipython().system_raw(f'LD_LIBRARY_PATH=/usr/lib64-nvidia:/usr/lib/x86_64-linux-gnu ./vcclient_latest_for_colab cui --port {PORT} --no_cui true >{LOG_FILE} 2>&1 &')\n",
+        "  if NgrokToken ==\"\":\n",
+        "    get_ipython().system_raw(f'LD_LIBRARY_PATH=/usr/lib64-nvidia:/usr/lib/x86_64-linux-gnu ./vcclient_latest_for_colab cui --port {PORT} --no_cui true --https False >{LOG_FILE} 2>&1 &')\n",
+        "  else:\n",
+        "    get_ipython().system_raw(f'LD_LIBRARY_PATH=/usr/lib64-nvidia:/usr/lib/x86_64-linux-gnu ./vcclient_latest_for_colab cui --port {PORT} --no_cui true --https False --ngrok_token {NgrokToken} --ngrok_proxy_url_file {NGROK_URL_FILE} >{LOG_FILE} 2>&1 &')\n",
         "elif mode == \"zip\":\n",
         "  !LD_LIBRARY_PATH=/usr/lib64-nvidia:/usr/lib/x86_64-linux-gnu ./main cui --port {PORT} --no_cui true &\n",
         "\n",
@@ -251,13 +288,26 @@
         "  print(\"--------- SERVER READY! ---------\")\n",
         "  print(f\"Your server is available. elapsed: {elapsed_time}sec\")\n",
         "  proxy = eval_js( \"google.colab.kernel.proxyPort(\" + str(PORT) + \")\" )\n",
-        "  print(f\"{proxy}\")\n",
+        "  print(f\"colab proxy: {proxy}\")\n",
+        "  if NgrokToken != \"\":\n",
+        "    with open(NGROK_URL_FILE, \"r\") as f:\n",
+        "      ngrok_url = f.read().strip()\n",
+        "    print(f\"Ngrok URL: {ngrok_url}\")\n",
         "  print(\"---------------------------------\")\n",
         "  if Play_Notification==True:\n",
         "    play_notification_sound('https://huggingface.co/wok000/voices/resolve/main/vcclient001_vctk229_gpt-sovits_vcclient-ready.wav')\n",
         "wait_for_server()\n"
       ]
     },
+    {
+      "cell_type": "code",
+      "source": [],
+      "metadata": {
+        "id": "CRZALk96MxuH"
+      },
+      "execution_count": null,
+      "outputs": []
+    },
     {
       "cell_type": "code",
       "source": [
@@ -279,7 +329,7 @@
     "colab": {
       "provenance": [],
       "gpuType": "T4",
-      "authorship_tag": "ABX9TyPpbFBssircyl/qT8uDX2zy",
+      "authorship_tag": "ABX9TyMWd/nQ6LnQpMDqF9MqEpsm",
       "include_colab_link": true
     },
     "kernelspec": {