diff --git a/src/doc/rustc-dev-guide/rust-version b/src/doc/rustc-dev-guide/rust-version
index 71a84e2bda12..7345c25066a8 100644
--- a/src/doc/rustc-dev-guide/rust-version
+++ b/src/doc/rustc-dev-guide/rust-version
@@ -1 +1 @@
-cec70080fd441d16e9fb08a0d1d1a04c72d1ed25
+2dc30247c5d8293aaa31e1d7dae2ed2fde908ada