diff --git a/rust/README.rst b/rust/README.rst
--- a/rust/README.rst
+++ b/rust/README.rst
@@ -74,8 +74,8 @@
 Developing Rust
 ===============
 
-The current version of Rust in use is ``1.41.1``, because it's what Debian
-stable has. You can use ``rustup override set 1.41.1`` at the root of the repo
+The current version of Rust in use is ``1.48.0``, because it's what Debian
+stable has. You can use ``rustup override set 1.48.0`` at the root of the repo
 to make it easier on you.
 
 Go to the ``hg-cpython`` folder::