diff --git a/intervention/appendix_plots.ipynb b/intervention/appendix_plots.ipynb
index e64984b..9771126 100644
--- a/intervention/appendix_plots.ipynb
+++ b/intervention/appendix_plots.ipynb
@@ -108,8 +108,8 @@
     "            frameon=False,\n",
     "        )\n",
     "\n",
-    "        for i in range(len(legend.legendHandles)):\n",
-    "            legend.legendHandles[i]._sizes = [2]\n",
+    "        for i in range(len(legend.legend_handles)):\n",
+    "            legend.legend_handles[i]._sizes = [2]\n",
     "\n",
     "        plt.tight_layout()\n",
     "\n",
diff --git a/intervention/main_text_plots.ipynb b/intervention/main_text_plots.ipynb
index 2266226..e83e129 100644
--- a/intervention/main_text_plots.ipynb
+++ b/intervention/main_text_plots.ipynb
@@ -309,7 +309,7 @@
     "    columnspacing=1,\n",
     "    handlelength=0.8,\n",
     ")\n",
-    "for legobj in leg.legendHandles:\n",
+    "for legobj in leg.legend_handles:\n",
     "    legobj.set_linewidth(1.5)\n",
     "\n",
     "fig.add_artist(\n",
@@ -404,7 +404,7 @@
     "    columnspacing=0,\n",
     ")\n",
     "for i in range(circle_size):\n",
-    "    lgnd.legendHandles[i]._sizes = [10]\n",
+    "    lgnd.legend_handles[i]._sizes = [10]\n",
     "\n",
     "plt.show()\n",
     "\n",