diff --git a/graphs_trees/bst_validate/bst_validate_challenge.ipynb b/graphs_trees/bst_validate/bst_validate_challenge.ipynb
index 5aef392..b611560 100644
--- a/graphs_trees/bst_validate/bst_validate_challenge.ipynb
+++ b/graphs_trees/bst_validate/bst_validate_challenge.ipynb
@@ -55,9 +55,11 @@
     "      5\n",
     "    /   \\\n",
     "   5     8\n",
-    "  / \\   /\n",
-    " 4   6 7\n",
-    "\n",
+    "  /     /\n",
+    " 4     6\n",
+    "        \\\n",
+    "         7\n",
+    "        \n",
     "Invalid:\n",
     "      5\n",
     "    /   \\\n",
diff --git a/graphs_trees/bst_validate/bst_validate_solution.ipynb b/graphs_trees/bst_validate/bst_validate_solution.ipynb
index 8dec9ac..41839e2 100644
--- a/graphs_trees/bst_validate/bst_validate_solution.ipynb
+++ b/graphs_trees/bst_validate/bst_validate_solution.ipynb
@@ -56,9 +56,11 @@
     "      5\n",
     "    /   \\\n",
     "   5     8\n",
-    "  / \\   /\n",
-    " 4   6 7\n",
-    "\n",
+    "  /     /\n",
+    " 4     6\n",
+    "        \\\n",
+    "         7\n",
+    "        \n",
     "Invalid:\n",
     "      5\n",
     "    /   \\\n",