diff --git a/README.md b/README.md
index 9dcb9e70..d4b600dc 100644
--- a/README.md
+++ b/README.md
@@ -255,6 +255,7 @@ _See also: [WeblogMatrix](https://www.weblogmatrix.org/)_
 - [htmly](https://www.htmly.com/) - Databaseless Blogging Platform (Flat-File Blog). ([Demo](https://demo.htmly.com/), [Source Code](https://github.com/danpros/htmly)) `GPL-2.0` `PHP`
 - [Known](https://withknown.com/) - A collaborative social publishing platform. ([Source Code](https://github.com/idno/known)) `Apache-2.0` `PHP`
 - [PluXml](https://pluxml.org) - XML-based blog/CMS platform. ([Source Code](https://github.com/pluxml/PluXml)) `GPL-3.0` `PHP`
+- [ponzu](https://github.com/ponzu-cms/ponzu) - Headless CMS with automatic JSON API. Featuring auto-HTTPS from Let's Encrypt, HTTP/2 Server Push, and flexible server framework written in Go (Source Code](https://github.com/ponzu-cms/ponzu))
 - [Serendipity](https://docs.s9y.org/) - Serendipity (s9y) is a highly extensible and customizable PHP blog engine using Smarty templating. ([Source Code](https://github.com/s9y/serendipity)) `BSD-3-Clause` `PHP`
 - [WriteFreely](https://writefreely.org) - Writing software for starting a minimalist, federated blog — or an entire community. ([Source Code](https://github.com/writefreely/writefreely)) `AGPL-3.0` `Go`