diff --git a/docs/element-support.md b/docs/element-support.md
index 44dda54..e80f846 100644
--- a/docs/element-support.md
+++ b/docs/element-support.md
@@ -49,3 +49,4 @@ For elements that are included in the official [DTD](https://github.com/Podcasti
 1. [Buzzsprout](https://www.buzzsprout.com)
 2. [Podverse](https://twitter.com/Podverse/status/1326072379597053953?s=20)
 3. [LehmanCreations Podcast Namespace Wordpress Plugin](https://github.com/Lehmancreations/Podcast-Namespace-Wordpress-Plugin)
+4. [Castopod](https://podlibre.org/castopod-supports-soundbite-tag/)