diff --git a/README b/README
index accfc7e..d7a79f6 100644
--- a/README
+++ b/README
@@ -20,9 +20,9 @@ See docs/ for more on the specific utilities currently implemented.
 Building
 
 The coreutils require a POSIX-compliant environment to compile, including a C
-compiler and preprocessor (cc(1) and cpp(1) by default) with the -idirafter
-flag, a Rust compiler (rustc(1) by default), bindgen(1), and a POSIX-compliant
-make(1) utility.
+compiler and preprocessor (cc(1) and cpp(1) by default), an edition 2023 Rust
+compiler (rustc(1) by default), bindgen(1), and a POSIX-compliant make(1)
+utility.
 
 To build and install: