diff --git a/_courses/S24introAdS.md b/_courses/S24introAdS.md
index 7197b7f..5c655f8 100644
--- a/_courses/S24introAdS.md
+++ b/_courses/S24introAdS.md
@@ -11,4 +11,4 @@ related_publications:
 Here you can find my lecture notes: 
 + [Part 1 - Anti-de Sitter space](https://drive.google.com/file/d/12y26H65LcQqJLPZqyZiy63RPeOvnE1cw/view?usp=sharing).
 + [Part 2 - Globally hyperbolic manifolds: definitions and examples](https://drive.google.com/file/d/12xGKqrebs97S9G4WUTCuljih7qV4XMSc/view?usp=sharing).
-+ [Part 3 - Mess' theorem](https://drive.google.com/file/d/12yTDjmD1cayWzKPJM3NjUeo-sMPuggye/view?usp=sharing).
++ [Part 3 - Mess' theorem](https://drive.google.com/file/d/1337EbRRpeZl9hozYZ738Ravvn5ZkFnRb/view?usp=sharing).