diff --git a/aa174a_aut2425/index.html b/aa174a_aut2425/index.html
index 39e346b..0e63cfa 100644
--- a/aa174a_aut2425/index.html
+++ b/aa174a_aut2425/index.html
@@ -335,13 +335,13 @@ <h3>Schedule</h3>
               </td>
               <td class="tg-vnl4">
                 <!-- Week 9 Lecture Slides -->
-                <!-- <a href="pdfs/lecture/lecture_15.pdf">Lecture 15</a>
-                <br/><a href="pdfs/lecture/lecture_16.pdf">Lecture 16</a> -->
+                <a href="pdfs/lecture/lecture_15.pdf">Lecture 15</a>
+                <!-- <br/><a href="pdfs/lecture/lecture_16.pdf">Lecture 16</a> -->
               </td>
               <td class="tg-vnl4">
                 <!-- Week 9 Notebook -->
-                <!-- <a href="https://drive.google.com/file/d/1TxPEaseopY0XaVXJ7PO70yT1Mh3Pd-x5/view?usp=sharing">Notebook 15</a>
-                <br/><a href="https://colab.research.google.com/drive/15WQJ8WDY75BxgQ_GebZCXQIaoIHWQxJN?usp=sharing">Notebook 16</a> -->
+                <a href="https://drive.google.com/file/d/1TxPEaseopY0XaVXJ7PO70yT1Mh3Pd-x5/view?usp=sharing">Notebook 15</a>
+                <!-- <br/><a href="https://colab.research.google.com/drive/15WQJ8WDY75BxgQ_GebZCXQIaoIHWQxJN?usp=sharing">Notebook 16</a> -->
               </td>
               <td class="tg-vnl4">
                 <!-- Week 9 Sections -->
diff --git a/aa174a_aut2425/pdfs/lecture/lecture_15.pdf b/aa174a_aut2425/pdfs/lecture/lecture_15.pdf
index 9065b21..d79c907 100644
Binary files a/aa174a_aut2425/pdfs/lecture/lecture_15.pdf and b/aa174a_aut2425/pdfs/lecture/lecture_15.pdf differ