diff --git a/open-machine-learning-jupyter-book/_toc.yml b/open-machine-learning-jupyter-book/_toc.yml
index 45ce1a7a2..6a4456061 100644
--- a/open-machine-learning-jupyter-book/_toc.yml
+++ b/open-machine-learning-jupyter-book/_toc.yml
@@ -99,17 +99,17 @@ parts:
     sections:
     - file: deep-learning/cnn/cnn-vgg
     - file: deep-learning/cnn/cnn-deepdream
-  - file: deep-learning/gan.ipynb
   - file: deep-learning/rnn.ipynb
-  - file: deep-learning/nlp.ipynb
-  - file: deep-learning/autoencoder.ipynb
   - file: deep-learning/lstm.ipynb
   - file: deep-learning/time-series.ipynb
-  - file: deep-learning/dqn.ipynb
+  - file: deep-learning/autoencoder.ipynb
+  - file: deep-learning/object-detection.ipynb
   - file: deep-learning/image-classification.ipynb
   - file: deep-learning/image-segmentation.ipynb
+  - file: deep-learning/nlp.ipynb
+  - file: deep-learning/gan.ipynb
   - file: deep-learning/difussion-model.ipynb
-  - file: deep-learning/object-detection.ipynb
+  - file: deep-learning/dqn.ipynb
 - caption: MACHINE LEARNING OPERATIONS
   maxdepth: 2
   numbered: True