diff --git a/book/features/live_code.ipynb b/book/features/live_code.ipynb
index 7288cae..f479f66 100644
--- a/book/features/live_code.ipynb
+++ b/book/features/live_code.ipynb
@@ -29,7 +29,7 @@
    "metadata": {},
    "source": [
     "## Setting up Python live coding\n",
-    "To set up the Python live coding you need to add our [own sphinx-thebe extension](https://gitlab.tudelft.nl/interactivetextbooks-citg/extensions/sphinx-thebe) to your book.  This extensions doesn't rely on a 3rd party like Binder and it supports local python execution and custom features. Therefore, you need to add some lines to `requirements.txt` and `_config.yml`\n",
+    "To set up the Python live coding you need to add our own sphinx-thebe extension to your book.  This extensions doesn't rely on a 3rd party like Binder and it supports local python execution and custom features. Therefore, you need to add some lines to `requirements.txt` and `_config.yml`\n",
     "\n",
     "For `requirements.txt` add the following lines:\n",
     "```\n",
@@ -126,8 +126,14 @@
   }
  ],
  "metadata": {
+  "kernelspec": {
+   "display_name": "base",
+   "language": "python",
+   "name": "python3"
+  },
   "language_info": {
-   "name": "python"
+   "name": "python",
+   "version": "3.9.18"
   }
  },
  "nbformat": 4,