diff --git a/notebooks/tike_lcviz_tutorial.ipynb b/notebooks/tike_lcviz_tutorial.ipynb
index 8fc58e7..7ce7b38 100644
--- a/notebooks/tike_lcviz_tutorial.ipynb
+++ b/notebooks/tike_lcviz_tutorial.ipynb
@@ -282,8 +282,8 @@
    "outputs": [],
    "source": [
     "# get the origin of the time axis in LCviz:\n",
-    "time_coordinates = lcviz.app.data_collection[0].coords\n",
-    "reference_time = time_coordinates.reference_time\n",
+    "data = lcviz.get_data()\n",
+    "reference_time = data.time[0]\n",
     "\n",
     "# literature ephemeris for hot Neptune planet HAT-P-11 b:\n",
     "morris2017_epoch = 2454605.89146  # BJD (TDB)\n",