diff --git a/notebooks/graphs.ipynb b/notebooks/graphs.ipynb
index d76cfeb..b50cd05 100644
--- a/notebooks/graphs.ipynb
+++ b/notebooks/graphs.ipynb
@@ -1415,7 +1415,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 18,
    "id": "84addc63",
    "metadata": {},
    "outputs": [