diff --git a/ml1/2_7_Model_Persistence.ipynb b/ml1/2_7_Model_Persistence.ipynb
index 5e9a5ff..3942b0a 100644
--- a/ml1/2_7_Model_Persistence.ipynb
+++ b/ml1/2_7_Model_Persistence.ipynb
@@ -117,7 +117,7 @@
    "outputs": [],
    "source": [
     "# save model\n",
-    "from sklearn.externals import joblib\n",
+    "import joblib\n",
     "joblib.dump(model, 'filename.pkl') \n",
     "\n",
     "#load model\n",
@@ -151,6 +151,15 @@
   }
  ],
  "metadata": {
+  "datacleaner": {
+   "position": {
+    "top": "50px"
+   },
+   "python": {
+    "varRefreshCmd": "try:\n    print(_datacleaner.dataframe_metadata())\nexcept:\n    print([])"
+   },
+   "window_display": false
+  },
   "kernelspec": {
    "display_name": "Python 3",
    "language": "python",
@@ -166,7 +175,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.7"
+   "version": "3.7.9"
   },
   "latex_envs": {
    "LaTeX_envs_menu_present": true,