diff --git a/README.md b/README.md
index 3004ca4..83ee9a0 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,8 @@ _Jetzig_ is a web framework written in 100% pure [Zig](https://ziglang.org) :liz
 
 Official website: [jetzig.dev](https://www.jetzig.dev/)
 
+Please note that _Jetzig_'s `main` branch aims to be compatible with the latest [Zig nightly master build](https://ziglang.org/download/) and older versions of _Zig_ are not supported.
+
 _Jetzig_ aims to provide a rich set of user-friendly tools for building modern web applications quickly. See the checklist below.
 
 Join us on Discord ! [https://discord.gg/eufqssz7X6](https://discord.gg/eufqssz7X6).