diff --git a/13_loading_and_preprocessing_data.ipynb b/13_loading_and_preprocessing_data.ipynb
index 235d271..b39f00e 100644
--- a/13_loading_and_preprocessing_data.ipynb
+++ b/13_loading_and_preprocessing_data.ipynb
@@ -889,8 +889,16 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "from tensorflow.train import BytesList, FloatList, Int64List\n",
-    "from tensorflow.train import Feature, Features, Example\n",
+    "# WARNING: there's currently a bug preventing \"from tensorflow.train\"\n",
+    "#          so we work around it by writing \"X = tf.train.X\"\n",
+    "#from tensorflow.train import BytesList, FloatList, Int64List\n",
+    "#from tensorflow.train import Feature, Features, Example\n",
+    "BytesList = tf.train.BytesList\n",
+    "FloatList = tf.train.FloatList\n",
+    "Int64List = tf.train.Int64List\n",
+    "Feature = tf.train.Feature\n",
+    "Features = tf.train.Features\n",
+    "Example = tf.train.Example\n",
     "\n",
     "person_example = Example(\n",
     "    features=Features(\n",
@@ -1724,7 +1732,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.8"
+   "version": "3.7.4"
   },
   "nav_menu": {
    "height": "264px",