diff --git a/w_okada's_Voice_Changer_version_2_x.ipynb b/w_okada's_Voice_Changer_version_2_x.ipynb
index c6aca388..3d4cbb69 100644
--- a/w_okada's_Voice_Changer_version_2_x.ipynb
+++ b/w_okada's_Voice_Changer_version_2_x.ipynb
@@ -61,11 +61,10 @@
       "source": [
         "#=================Updated=================\n",
         "# @title **[1]** Clone repository and install dependencies\n",
-        "# @markdown This first step will download the latest version of Voice Changer and install the dependencies. **It can take some time to complete.**\n",
+        "# @markdown This first step will download the latest version of Voice Changer and install the dependencies. **It can take some time to complete.(~10min)**\n",
         "\n",
         "#@markdown ---\n",
-        "# @title **[Optional]** Connect to Google Drive\n",
-        "# @markdown Using Google Drive will automatically save your uploaded models for later use.\n",
+        "# @markdown By using Google Drive, you can avoid re-downloading already downloaded versions.\n",
         "\n",
         "\n",
         "import os\n",
@@ -80,6 +79,10 @@
         "Run_Cell=0\n",
         "Use_Drive=True #@param {type:\"boolean\"}\n",
         "\n",
+        "current_version_hash=None\n",
+        "latest_version_hash=None\n",
+        "\n",
+        "\n",
         "notebook_env=0\n",
         "if os.path.exists('/content'):\n",
         "  notebook_env=1\n",
@@ -95,11 +98,6 @@
         "\n",
         "from IPython.display import clear_output, Javascript\n",
         "\n",
-        "print(\"Installing libportaudio2... \",end=\"\")\n",
-        "!sudo apt-get install -y libportaudio2 > /dev/null 2>&1\n",
-        "!pip install  pyngrok > /dev/null 2>&1\n",
-        "print(\"done.\")\n",
-        "\n",
         "if notebook_env==1 and Use_Drive==True:\n",
         "  work_dir = \"/content/drive/MyDrive/vcclient\"\n",
         "  if not os.path.exists('/content/drive'):\n",
@@ -124,20 +122,32 @@
         "    print(f\"hash not match -> download latest version\")\n",
         "\n",
         "    latest_hash_path=f'{work_dir}/latest_hash.txt'\n",
-        "    !curl -L https://huggingface.co/wok000/vcclient000_colab/resolve/main/vcclient_latest_for_colab -o {work_dir}/vcclient_latest_for_colab\n",
+        "    !curl -L https://huggingface.co/wok000/vcclient000_colab/resolve/main/vcclient_latest_for_colab.zip -o {work_dir}/vcclient_latest_for_colab.zip\n",
         "    !cp latest_hash.txt {latest_hash_path}\n",
+        "    print(\"Download is done.\")\n",
         "  else:\n",
         "    print(\"hash matched. skip download\")\n",
         "\n",
         "else:\n",
         "  work_dir = \"/content\"\n",
         "  print(\"Downloading the latest vcclient... \")\n",
-        "  !curl -L https://huggingface.co/wok000/vcclient000_colab/resolve/main/vcclient_latest_for_colab -o {work_dir}/vcclient_latest_for_colab\n",
-        "  print(\"done.\")\n",
+        "  !curl -s -L https://huggingface.co/wok000/vcclient000_colab/resolve/main/latest_hash.txt -o latest_hash.txt\n",
+        "  latest_version_hash = open('latest_hash.txt').read().strip()\n",
+        "  !curl -L https://huggingface.co/wok000/vcclient000_colab/resolve/main/vcclient_latest_for_colab.zip -o {work_dir}/vcclient_latest_for_colab.zip\n",
+        "  print(\"Download is done.\")\n",
         "\n",
-        "%cd {work_dir}\n",
-        "!chmod 0700 vcclient_latest_for_colab\n",
-        "!ls -lha vcclient_latest_for_colab\n",
+        "if current_version_hash != latest_version_hash:\n",
+        "  print(f\"Unzip vcclient to {latest_version_hash} ... \")\n",
+        "  !cd {work_dir} && unzip -q vcclient_latest_for_colab.zip -d {latest_version_hash}\n",
+        "  print(f\"Unzip is done.\")\n",
+        "\n",
+        "%cd {work_dir}/{latest_version_hash}/main\n",
+        "!chmod 0700 main\n",
+        "\n",
+        "print(\"Installing modules... \",end=\"\")\n",
+        "!sudo apt-get install -y libportaudio2 > /dev/null 2>&1\n",
+        "!pip install  pyngrok > /dev/null 2>&1\n",
+        "print(\"Install is done.\")\n",
         "\n",
         "Run_Cell=1\n"
       ]
@@ -164,7 +174,7 @@
         "# @markdown **1** - Create a <font color=green>**free**</font> account at [ngrok](https://dashboard.ngrok.com/signup) or **login with Google/Github account**\\\n",
         "# @markdown **2** - If you didn't logged in with Google/Github, you will need to **verify your e-mail**!\\\n",
         "# @markdown **3** - Click [this link](https://dashboard.ngrok.com/get-started/your-authtoken) to get your auth token, and place it here:\n",
-        "Token = 'TOKEN' # @param {type:\"string\"}\n",
+        "Token = '' # @param {type:\"string\"}\n",
         "# @markdown **4** - *(optional)* Change to a region near to you or keep at United States if increase latency\\\n",
         "# @markdown `Default Region: ap - Asia/Pacific (Singapore)`\n",
         "Region = \"jp - Japan (Tokyo)\" # @param [\"ap - Asia/Pacific (Singapore)\", \"au - Australia (Sydney)\",\"eu - Europe (Frankfurt)\", \"in - India (Mumbai)\",\"jp - Japan (Tokyo)\",\"sa - South America (Sao Paulo)\", \"us - United States (Ohio)\"]\n",
@@ -211,17 +221,24 @@
         "# @markdown This cell will start the server, the first time that you run it will download the models, so it can take a while (~1-2 minutes)\n",
         "\n",
         "# @markdown When you see the message \"running...\", please launch the application from the link above.\n",
-        "!LD_LIBRARY_PATH=/usr/lib64-nvidia:/usr/lib/x86_64-linux-gnu ./vcclient_latest_for_colab cui --port {PORT} --no_cui true\n",
+        "!LD_LIBRARY_PATH=/usr/lib64-nvidia:/usr/lib/x86_64-linux-gnu ./main cui --port {PORT} --no_cui true\n",
         "\n"
       ]
+    },
+    {
+      "cell_type": "code",
+      "source": [],
+      "metadata": {
+        "id": "iv9OixP6rCEP"
+      },
+      "execution_count": null,
+      "outputs": []
     }
   ],
   "metadata": {
-    "accelerator": "GPU",
     "colab": {
-      "gpuType": "T4",
       "provenance": [],
-      "authorship_tag": "ABX9TyNnHjYET1tXcVALa6o6IPRp",
+      "authorship_tag": "ABX9TyNWJR74GxLHE/fMfDb7IR0J",
       "include_colab_link": true
     },
     "kernelspec": {