diff --git a/docs/safety101.ipynb b/docs/safety101.ipynb
index 867baad66..095eb0fa2 100644
--- a/docs/safety101.ipynb
+++ b/docs/safety101.ipynb
@@ -86,7 +86,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 4,
    "metadata": {},
    "outputs": [
     {