diff --git a/README.md b/README.md
index 1f1221c..36acfd5 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ This dub package contains D declarations for the [Excel SDK](https://msdn.micros
  as well as a D wrapper API. This allows programmers to write Excel worksheet functions in D.
 
 Motivation and background for the project can be found [here](https://dlang.org/blog/2017/05/31/project-highlight-excel-d/).
-See also the [DConf 2017 lightning talk](https://youtu.be/xJy6ifCekCE?list=PL3jwVPmk_PRxo23yyoc0Ip_cP3-rCm7eB) about excel-d.
+See also the [DConf 2017 lightning talk](https://youtu.be/Q70yUGR7d8k?si=KzxHf0fSjUDrQFI_) about excel-d.
 
 Run makedocs.sh to generate the documentation
 Generated documentation - a work in progress - is available at