diff --git a/10_neural_nets_with_keras.ipynb b/10_neural_nets_with_keras.ipynb
index 0f507c4..f26bebf 100644
--- a/10_neural_nets_with_keras.ipynb
+++ b/10_neural_nets_with_keras.ipynb
@@ -39,7 +39,7 @@
     "\n",
     "# TensorFlow ≥2.0-preview is required\n",
     "import tensorflow as tf\n",
-    "assert hasattr(tf.compat, \"v1\")\n",
+    "assert tf.__version__ >= \"2.0\"\n",
     "\n",
     "# Common imports\n",
     "import numpy as np\n",
diff --git a/work_in_progress/11_deep_learning.ipynb b/13_deep_learning.ipynb
similarity index 100%
rename from work_in_progress/11_deep_learning.ipynb
rename to 13_deep_learning.ipynb