diff --git a/python/LQR.ipynb b/python/LQR.ipynb
index 4c4cc402..b683444a 100644
--- a/python/LQR.ipynb
+++ b/python/LQR.ipynb
@@ -10,27 +10,22 @@
     "\n",
     "# <h1><center>LQR tutorial  <a href=\"https://colab.research.google.com/github/google-deepmind/mujoco/blob/main/python/LQR.ipynb\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" width=\"140\" align=\"center\"/></a></center></h1>\n",
     "\n",
-    "This notebook provides an example of an LQR controller using [**MuJoCo** physics](https://github.com/google-deepmind/mujoco#readme)."
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {
-    "id": "LBAvTJ0xHKy7"
-   },
-   "source": [
-    "### Copyright notice"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {
-    "id": "_UbO9uhtBSX5"
-   },
-   "source": [
-    "> <p><small><small>Copyright 2022 DeepMind Technologies Limited</small></p>\n",
-    "> <p><small><small>Licensed under the Apache License, Version 2.0 (the \"License\"); you may not use this file except in compliance with the License. You may obtain a copy of the License at <a href=\"http://www.apache.org/licenses/LICENSE-2.0\">http://www.apache.org/licenses/LICENSE-2.0</a>.</small></small></p>\n",
-    "> <p><small><small>Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.</small></small></p>"
+    "This notebook provides an example of an LQR controller using [**MuJoCo** physics](https://github.com/google-deepmind/mujoco#readme).\n",
+    "\n",
+    "<!-- Copyright 2021 DeepMind Technologies Limited\n",
+    "\n",
+    "     Licensed under the Apache License, Version 2.0 (the \"License\");\n",
+    "     you may not use this file except in compliance with the License.\n",
+    "     You may obtain a copy of the License at\n",
+    "\n",
+    "         http://www.apache.org/licenses/LICENSE-2.0\n",
+    "\n",
+    "     Unless required by applicable law or agreed to in writing, software\n",
+    "     distributed under the License is distributed on an \"AS IS\" BASIS,\n",
+    "     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n",
+    "     See the License for the specific language governing permissions and\n",
+    "     limitations under the License.\n",
+    "-->"
    ]
   },
   {
@@ -935,7 +930,6 @@
   "accelerator": "GPU",
   "colab": {
    "collapsed_sections": [
-    "LBAvTJ0xHKy7",
     "QPdJNe3k62mx"
    ],
    "private_outputs": true
diff --git a/python/tutorial.ipynb b/python/tutorial.ipynb
index 12aa8ce7..3c6e4643 100644
--- a/python/tutorial.ipynb
+++ b/python/tutorial.ipynb
@@ -10,27 +10,22 @@
     "\n",
     "# <h1><center>Tutorial  <a href=\"https://colab.research.google.com/github/google-deepmind/mujoco/blob/main/python/tutorial.ipynb\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" width=\"140\" align=\"center\"/></a></center></h1>\n",
     "\n",
-    "This notebook provides an introductory tutorial for [**MuJoCo** physics](https://github.com/google-deepmind/mujoco#readme), using the native Python bindings."
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {
-    "id": "xBSdkbmGN2K-"
-   },
-   "source": [
-    "### Copyright notice"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {
-    "id": "_UbO9uhtBSX5"
-   },
-   "source": [
-    "> <p><small><small>Copyright 2022 DeepMind Technologies Limited.</small></p>\n",
-    "> <p><small><small>Licensed under the Apache License, Version 2.0 (the \"License\"); you may not use this file except in compliance with the License. You may obtain a copy of the License at <a href=\"http://www.apache.org/licenses/LICENSE-2.0\">http://www.apache.org/licenses/LICENSE-2.0</a>.</small></small></p>\n",
-    "> <p><small><small>Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.</small></small></p>"
+    "This notebook provides an introductory tutorial for [**MuJoCo** physics](https://github.com/google-deepmind/mujoco#readme), using the native Python bindings.\n",
+    "\n",
+    "<!-- Copyright 2021 DeepMind Technologies Limited\n",
+    "\n",
+    "     Licensed under the Apache License, Version 2.0 (the \"License\");\n",
+    "     you may not use this file except in compliance with the License.\n",
+    "     You may obtain a copy of the License at\n",
+    "\n",
+    "         http://www.apache.org/licenses/LICENSE-2.0\n",
+    "\n",
+    "     Unless required by applicable law or agreed to in writing, software\n",
+    "     distributed under the License is distributed on an \"AS IS\" BASIS,\n",
+    "     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n",
+    "     See the License for the specific language governing permissions and\n",
+    "     limitations under the License.\n",
+    "-->"
    ]
   },
   {
@@ -2122,7 +2117,6 @@
   "accelerator": "GPU",
   "colab": {
    "collapsed_sections": [
-    "xBSdkbmGN2K-",
     "YvyGCsgSCxHQ"
    ],
    "gpuClass": "premium",