diff --git a/README.md b/README.md
index b519511..5197ace 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ You'll need the following to be able to build this:
 
 - [git](https://git-scm.com/)
 - C/C++ compiler (supporting C11 and C++17)
-- Rust (via [rustup](https://rustup.rs/))
+- Rust 1.59 or greater
 - [Pico SDK](https://github.com/raspberrypi/pico-sdk)
 
 ### Clone