diff --git a/unit07_tunnelling/lecture/README.MD b/unit07_tunnelling/lecture/README.MD
index ae05cf6..ad9dcd3 100644
--- a/unit07_tunnelling/lecture/README.MD
+++ b/unit07_tunnelling/lecture/README.MD
@@ -5,6 +5,6 @@
 ## Presentations
 This provides an outline of tunnelling, including for SSL/TLS and IPSec:
 
-* Presentation (Lecture): [here](https://youtu.be/fz4eO53kOIU)
+* Presentation (Lecture): [here](https://www.youtube.com/watch?v=73ZNispJuy0)
 * Presentation (PDF): [here](https://github.com/billbuchanan/esecurity/blob/master/unit07_tunnelling/lecture/unit07_tunnelling.pdf)
 * Doodle: [here](https://www.youtube.com/watch?v=QEuzoXECf-c)