diff --git a/unit07_tunnelling/README.md b/unit07_tunnelling/README.md
index c3c0e9c..25a1a9b 100644
--- a/unit07_tunnelling/README.md
+++ b/unit07_tunnelling/README.md
@@ -5,9 +5,9 @@
 ## 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)
-<!-- * Presentation (Video): [here](https://youtu.be/JA9zfKtVwwE) -->
+
 
 ## Lab
 The labs are: