diff --git a/modern_2_method_chaining.ipynb b/modern_2_method_chaining.ipynb
index 0229160..79dbe0a 100644
--- a/modern_2_method_chaining.ipynb
+++ b/modern_2_method_chaining.ipynb
@@ -427,6 +427,7 @@
     "fig, ax = plt.subplots(figsize=(15, 5))\n",
     "sns.boxplot(x='turn', y='dep_delay', data=flights, ax=ax)\n",
     "sns.despine()"
+    "ax.set_ylim(-50, 50)"
    ]
   },
   {
diff --git a/modern_3_indexes.ipynb b/modern_3_indexes.ipynb
index 8d59efa..1f5f68b 100644
--- a/modern_3_indexes.ipynb
+++ b/modern_3_indexes.ipynb
@@ -653,6 +653,7 @@
    "source": [
     "airports = ['W43', 'AFO', '82V', 'DUB']\n",
     "\n",
+    "weather.sort_index(inplace=True)",
     "g = sns.FacetGrid(weather.loc[airports].reset_index(),\n",
     "                  col='station', hue='station', col_wrap=2, size=4)\n",
     "g.map(sns.regplot, 'sped', 'gust_mph')"