diff --git a/10-geodaten/01-projections.ipynb b/10-geodaten/01-projections.ipynb
index e116f63a475759d8b2e8974345dd27aa6c81468b..5dbfee697cf43b620041509a611755d24967cf30 100644
--- a/10-geodaten/01-projections.ipynb
+++ b/10-geodaten/01-projections.ipynb
@@ -86,7 +86,7 @@
     "\n",
     "if scaledown:\n",
     "    # split MultiPolygons into separate Polygons, e. g. 1 MultiPolygon of Germany → 6 Polygons (6 rows with the same data)\n",
-    "    countries = countries.explode()\n",
+    "    countries = countries.explode(index_parts=False)\n",
     "\n",
     "    # scale down each poly\n",
     "    scale = 1 / np.sqrt(ratio)\n",
@@ -112,7 +112,7 @@
     "    attribution=countries.crs.name\n",
     ")"
    ],
-   "id": "0005-87f4bcf5159c2d37428cabbcd55f47bf4cd95bbb86ed15eced56f1b465b"
+   "id": "0005-5b4adbf9e675eff3ed4415e452a13cfb859e618ba5637ea6a5290655f08"
   },
   {
    "cell_type": "markdown",