diff --git a/VoiceChangerDemo_Simple.ipynb b/VoiceChangerDemo_Simple.ipynb
index 5a7acf76..69c24120 100644
--- a/VoiceChangerDemo_Simple.ipynb
+++ b/VoiceChangerDemo_Simple.ipynb
@@ -4,7 +4,7 @@
   "metadata": {
     "colab": {
       "provenance": [],
-      "authorship_tag": "ABX9TyNVa3l0Z1DnQzD9WKC/6oWG",
+      "authorship_tag": "ABX9TyPxc46bC1GMDee02W4h1fR8",
       "include_colab_link": true
     },
     "kernelspec": {
@@ -25,9 +25,26 @@
         "colab_type": "text"
       },
       "source": [
-        "<a href=\"https://colab.research.google.com/github/w-okada/voice-changer/blob/dev/VoiceChangerDemo_Simple.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
+        "<a href=\"https://colab.research.google.com/github/w-okada/voice-changer/blob/master/VoiceChangerDemo_Simple.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
       ]
     },
+    {
+      "cell_type": "markdown",
+      "source": [
+        "# このノートブックは管理されていません。\n",
+        "# VCClientをColabで使用する場合は、次のノートブックをご使用ください。\n",
+        "\n",
+        "# This notebook is not being managed.\n",
+        "# If you're using VCClient in Colab, please use the following notebook.\n",
+        "\n",
+        "https://github.com/w-okada/voice-changer/blob/master/Realtime_Voice_Changer_on_Colab.ipynb\n",
+        "\n",
+        "\n"
+      ],
+      "metadata": {
+        "id": "gWeB56-tyGJK"
+      }
+    },
     {
       "cell_type": "markdown",
       "source": [
@@ -212,7 +229,7 @@
         "\n",
         "サーバを起動します。(4-1)\n",
         "\n",
-        "サーバの起動状況を確認します。(4-2) \n",
+        "サーバの起動状況を確認します。(4-2)\n",
         "\n",
         "このセルは繰り返し実行することになるのでCtrl+Retでセルを実行してください。\n",
         "\n",
@@ -222,7 +239,7 @@
         "\n",
         "```\n",
         "    Voice Changerを起動しています。\n",
-        "    -- 設定 -- \n",
+        "    -- 設定 --\n",
         "    CONFIG:None, MODEL:None ONNX_MODEL:None\n",
         "```\n",
         "\n"