diff --git a/MMVCTrainerFrontendDemo.ipynb b/MMVCTrainerFrontendDemo.ipynb
index 37c1ff40..e71533cb 100644
--- a/MMVCTrainerFrontendDemo.ipynb
+++ b/MMVCTrainerFrontendDemo.ipynb
@@ -24,9 +24,20 @@
         "colab_type": "text"
       },
       "source": [
-        "<a href=\"https://colab.research.google.com/github/w-okada/voice-changer/blob/dev/MMVCTrainerFrontendDemo.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/MMVCTrainerFrontendDemo.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",
+        "https://github.com/w-okada/voice-changer/blob/master/Realtime_Voice_Changer_on_Colab.ipynb"
+      ],
+      "metadata": {
+        "id": "_41LkcbiwUFK"
+      }
+    },
     {
       "cell_type": "markdown",
       "source": [
@@ -74,7 +85,7 @@
         "id": "vV1t7PBRm-o6",
         "outputId": "4f159c80-8114-4732-f5af-0856f7b5c39a"
       },
-      "execution_count": 1,
+      "execution_count": null,
       "outputs": [
         {
           "output_type": "stream",
@@ -130,7 +141,7 @@
         "id": "86wTFmqsNMnD",
         "outputId": "3f84319c-0365-442a-fa3a-0a8aea701926"
       },
-      "execution_count": 2,
+      "execution_count": null,
       "outputs": [
         {
           "output_type": "stream",
@@ -186,7 +197,7 @@
           "base_uri": "https://localhost:8080/"
         }
       },
-      "execution_count": 3,
+      "execution_count": null,
       "outputs": [
         {
           "output_type": "stream",
@@ -211,7 +222,7 @@
         "\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",
@@ -247,7 +258,7 @@
       "metadata": {
         "id": "G-nMdPxEW1rc"
       },
-      "execution_count": 4,
+      "execution_count": null,
       "outputs": []
     },
     {
@@ -264,7 +275,7 @@
         "id": "chu06KpAjEK6",
         "outputId": "51b4979c-91b7-4c95-eb4b-40ea001042a9"
       },
-      "execution_count": 6,
+      "execution_count": null,
       "outputs": [
         {
           "output_type": "stream",
@@ -310,7 +321,7 @@
         },
         "outputId": "bcca9fae-642c-42f6-f3a5-a8bb0789090f"
       },
-      "execution_count": 7,
+      "execution_count": null,
       "outputs": [
         {
           "output_type": "stream",