diff --git a/docs/source/index.rst b/docs/source/index.rst
index 019275740..95ba567f9 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -242,8 +242,8 @@ Contents
    notebooks/10_workflows_on_Amazon_braket.ipynb
    notebooks/11_Mixer_example.ipynb
    notebooks/12_testing_azure.ipynb
+   notebooks/13_optimizers.ipynb
    notebooks/X_dumping_data.ipynb
-   notebooks/X_optimizers.ipynb
 
 
 .. toctree::
diff --git a/examples/X_optimizers.ipynb b/examples/13_optimizers.ipynb
similarity index 100%
rename from examples/X_optimizers.ipynb
rename to examples/13_optimizers.ipynb
diff --git a/tests/test_notebooks.py b/tests/test_notebooks.py
index 14dbe6732..42df0a32e 100644
--- a/tests/test_notebooks.py
+++ b/tests/test_notebooks.py
@@ -75,12 +75,12 @@ def test_11_Mixer_example():
     notebook_test_function("./examples/11_Mixer_example.ipynb")
 
 
-def test_X_dumping_data():
-    notebook_test_function("./examples/X_dumping_data.ipynb")
+def test_13_optimizers():
+    notebook_test_function("./examples/13_optimizers.ipynb")
 
 
-def test_X_optimizers():
-    notebook_test_function("./examples/X_optimizers.ipynb")
+def test_X_dumping_data():
+    notebook_test_function("./examples/X_dumping_data.ipynb")
        
        
 ### Community Tutorials