diff --git a/index.ipynb b/index.ipynb
index 5ac64c1..27ea997 100644
--- a/index.ipynb
+++ b/index.ipynb
@@ -58,37 +58,27 @@
     "### Import some packages"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Some packages may be missing on some platforms so we try to install them (you may see error messages when running on Google Colab but installation usually works).\n",
+    "If you experience problems, please [fill in an issue](https://github.com/gwosc-tutorial/quickview/issues)."
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 16,
    "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "<contextlib.ExitStack at 0x13b3bfe80>"
-      ]
-     },
-     "execution_count": 16,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
+   "outputs": [],
    "source": [
-    "import requests, os\n",
-    "import matplotlib.pyplot as plt\n",
-    "%config InlineBackend.figure_format = 'retina'\n",
-    "\n",
     "try:\n",
     "    from gwpy.timeseries import TimeSeries\n",
     "except:\n",
-    "    ! pip install -q \"gwpy==3.0.9\"\n",
-    "    ! pip install -q \"matplotlib==3.7.3\"\n",
-    "    ! pip install -q \"astropy==6.1.4\"\n",
-    "    from gwpy.timeseries import TimeSeries  \n",
+    "    ! pip install -q \"gwpy==3.0.13\"\n",
+    "    from gwpy.timeseries import TimeSeries\n",
     "\n",
-    "# -- Turn on interactive plotting\n",
-    "plt.ion()"
+    "import matplotlib.pyplot as plt"
    ]
   },
   {