diff --git a/src/doc/rustc-dev-guide/rust-version b/src/doc/rustc-dev-guide/rust-version
index 4bcbec1a9f48..71a84e2bda12 100644
--- a/src/doc/rustc-dev-guide/rust-version
+++ b/src/doc/rustc-dev-guide/rust-version
@@ -1 +1 @@
-ce63e5d9ea20f15a70c6fdc4d4de7aee352fd965
+cec70080fd441d16e9fb08a0d1d1a04c72d1ed25