diff --git a/README.md b/README.md
index 128e90a5..fbff79fa 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 
 **The mp-units library is the subject of ISO standardization for C++23/26. More on this can
 be found in ISO C++ paper [P1935](https://wg21.link/p1935) and
-[CppCon 2020 talk](https://www.youtube.com/watch?v=7dExYGSOJzo). We are actively looking for
+[NDC TechTown 2021 talk](https://www.youtube.com/watch?v=nudq58d0TFc). We are actively looking for
 parties interested in field trialing the library.**
 
 [![Open in Gitpod](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/mpusz/units)
diff --git a/docs/index.rst b/docs/index.rst
index dca5c113..948b8df2 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -10,7 +10,7 @@ with a permissive `MIT license <https://github.com/mpusz/units/blob/master/LICEN
 
     The **mp-units** library is the subject of ISO standardization for C++23/26. More on this can
     be found in ISO C++ paper `P1935 <https://wg21.link/p1935>`_ and
-    `CppCon 2020 talk <https://www.youtube.com/watch?v=7dExYGSOJzo>`_. We are actively looking for
+    `NDC TechTown 2021 talk <https://www.youtube.com/watch?v=nudq58d0TFc>`_. We are actively looking for
     parties interested in field trialing the library.
 
 .. note::