diff --git a/aa174a_aut2425/index.html b/aa174a_aut2425/index.html
index 16e83d0..59be2f0 100644
--- a/aa174a_aut2425/index.html
+++ b/aa174a_aut2425/index.html
@@ -156,7 +156,7 @@ <h3>Schedule</h3>
               <td class="tg-vnl4">
                 <!-- Week 1 Lecuture Slides -->
                 <a href="pdfs/lecture/lecture_1.pdf">Lecture 1</a><br/>
-                <!-- <a href="pdfs/lecture/lecture_2.pdf">Lecture 2</a><br/> -->
+                <a href="pdfs/lecture/lecture_2.pdf">Lecture 2</a><br/>
                 <!-- <a href="pdfs/pre_knowledge_assessment.pdf">Pre-knowledge quiz</a> -->
               </td>
               <td class="tg-vnl4">
diff --git a/aa174a_aut2425/pdfs/lecture/lecture_2.pdf b/aa174a_aut2425/pdfs/lecture/lecture_2.pdf
index 531431f..1230223 100644
Binary files a/aa174a_aut2425/pdfs/lecture/lecture_2.pdf and b/aa174a_aut2425/pdfs/lecture/lecture_2.pdf differ