diff --git a/07_ensemble_learning_and_random_forests.ipynb b/07_ensemble_learning_and_random_forests.ipynb
index 17beb08..9a2251a 100644
--- a/07_ensemble_learning_and_random_forests.ipynb
+++ b/07_ensemble_learning_and_random_forests.ipynb
@@ -194,6 +194,19 @@
     "voting_clf.fit(X_train, y_train)"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# LabelEncoder 버그로 인해 생기는 DeprecationWarning 막기\n",
+    "# https://github.com/scikit-learn/scikit-learn/pull/9816\n",
+    "# https://stackoverflow.com/questions/49545947/sklearn-deprecationwarning-truth-value-of-an-array\n",
+    "import warnings\n",
+    "warnings.filterwarnings(action='ignore', category=DeprecationWarning)"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 7,